8657961 has 8 divisors (see below), whose sum is σ = 12432000. Its totient is φ = 5327952.

The previous prime is 8657933. The next prime is 8657969. The reversal of 8657961 is 1697568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8657961 - 2⁷ = 8657833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8657969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110961 + ... + 111038.

It is an arithmetic number, because the mean of its divisors is an integer number (1554000).

Almost surely, 2^8657961 is an apocalyptic number.

It is an amenable number.

8657961 is a deficient number, since it is larger than the sum of its proper divisors (3774039).

8657961 is a wasteful number, since it uses less digits than its factorization.

8657961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222015.

The product of its digits is 90720, while the sum is 42.

The square root of 8657961 is about 2942.4413333149. The cubic root of 8657961 is about 205.3392044361.

The spelling of 8657961 in words is "eight million, six hundred fifty-seven thousand, nine hundred sixty-one".