8856961 has 4 divisors (see below), whose sum is σ = 8885572. Its totient is φ = 8828352.

The previous prime is 8856959. The next prime is 8856971. The reversal of 8856961 is 1696588.

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

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 8520561 = 580^2 + 2919^2 .

It is a cyclic number.

It is not a de Polignac number, because 8856961 - 2¹ = 8856959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8856901) 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, 13836 + ... + 14461.

It is an arithmetic number, because the mean of its divisors is an integer number (2221393).

Almost surely, 2^8856961 is an apocalyptic number.

It is an amenable number.

8856961 is a deficient number, since it is larger than the sum of its proper divisors (28611).

8856961 is a wasteful number, since it uses less digits than its factorization.

8856961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28610.

The product of its digits is 103680, while the sum is 43.

The square root of 8856961 is about 2976.0646834368. The cubic root of 8856961 is about 206.9005177493.

The spelling of 8856961 in words is "eight million, eight hundred fifty-six thousand, nine hundred sixty-one".