8201611 has 4 divisors (see below), whose sum is σ = 8947224. Its totient is φ = 7456000.

The previous prime is 8201603. The next prime is 8201621. The reversal of 8201611 is 1161028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8201611 - 2³ = 8201603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8201621) 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 3 ways as a sum of consecutive naturals, for example, 372790 + ... + 372811.

It is an arithmetic number, because the mean of its divisors is an integer number (2236806).

Almost surely, 2^8201611 is an apocalyptic number.

8201611 is a deficient number, since it is larger than the sum of its proper divisors (745613).

8201611 is a wasteful number, since it uses less digits than its factorization.

8201611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745612.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 8201611 is about 2863.8454916423. The cubic root of 8201611 is about 201.6661724673. Note that the first 3 decimals are identical.

Adding to 8201611 its reverse (1161028), we get a palindrome (9362639).

The spelling of 8201611 in words is "eight million, two hundred one thousand, six hundred eleven".