8455641 has 4 divisors (see below), whose sum is σ = 11274192. Its totient is φ = 5637092.

The previous prime is 8455639. The next prime is 8455661. The reversal of 8455641 is 1465548.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8455641 - 2¹ = 8455639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8455621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1409271 + ... + 1409276.

It is an arithmetic number, because the mean of its divisors is an integer number (2818548).

Almost surely, 2^8455641 is an apocalyptic number.

It is an amenable number.

8455641 is a deficient number, since it is larger than the sum of its proper divisors (2818551).

8455641 is a wasteful number, since it uses less digits than its factorization.

8455641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818550.

The product of its digits is 19200, while the sum is 33.

The square root of 8455641 is about 2907.8584903671. The cubic root of 8455641 is about 203.7271197663.

The spelling of 8455641 in words is "eight million, four hundred fifty-five thousand, six hundred forty-one".