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8288641 = 28792
BaseRepresentation
bin11111100111100110000001
3120121002212201
4133213212001
54110214031
6453353201
7130311064
oct37474601
916532781
108288641
114751419
122938801
13194292a
14115a8db
15adad61
hex7e7981

8288641 has 3 divisors (see below), whose sum is σ = 8291521. Its totient is φ = 8285762.

The previous prime is 8288633. The next prime is 8288647. The reversal of 8288641 is 1468828.

The square root of 8288641 is 2879.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 8288641 - 23 = 8288633 is a prime.

It is a Duffinian number.

8288641 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8288641.

It is not an unprimeable number, because it can be changed into a prime (8288647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1440 + ... + 4318.

Almost surely, 28288641 is an apocalyptic number.

8288641 is the 2879-th square number.

8288641 is the 1440-th centered octagonal number.

It is an amenable number.

8288641 is a deficient number, since it is larger than the sum of its proper divisors (2880).

8288641 is an frugal number, since it uses more digits than its factorization.

8288641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758 (or 2879 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The cubic root of 8288641 is about 202.3769795901.

The spelling of 8288641 in words is "eight million, two hundred eighty-eight thousand, six hundred forty-one".

Divisors: 1 2879 8288641