8611957 has 4 divisors (see below), whose sum is σ = 8674956. Its totient is φ = 8548960.

The previous prime is 8611903. The next prime is 8611961. The reversal of 8611957 is 7591168.

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 7150276 + 1461681 = 2674^2 + 1209^2 .

It is a cyclic number.

It is not a de Polignac number, because 8611957 - 2⁷ = 8611829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8611987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31294 + ... + 31567.

It is an arithmetic number, because the mean of its divisors is an integer number (2168739).

Almost surely, 2^8611957 is an apocalyptic number.

It is an amenable number.

8611957 is a deficient number, since it is larger than the sum of its proper divisors (62999).

8611957 is a wasteful number, since it uses less digits than its factorization.

8611957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62998.

The product of its digits is 15120, while the sum is 37.

The square root of 8611957 is about 2934.6136031853. The cubic root of 8611957 is about 204.9748690193.

The spelling of 8611957 in words is "eight million, six hundred eleven thousand, nine hundred fifty-seven".