8971957 has 4 divisors (see below), whose sum is σ = 9005580. Its totient is φ = 8938336.

The previous prime is 8971943. The next prime is 8971969. The reversal of 8971957 is 7591798.

8971957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7591798 = 2 ⋅3795899.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 8242641 = 854^2 + 2871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8971957 is a prime.

It is a Duffinian number.

8971957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8971657) 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, 16408 + ... + 16945.

It is an arithmetic number, because the mean of its divisors is an integer number (2251395).

Almost surely, 2^8971957 is an apocalyptic number.

It is an amenable number.

8971957 is a deficient number, since it is larger than the sum of its proper divisors (33623).

8971957 is a wasteful number, since it uses less digits than its factorization.

8971957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33622.

The product of its digits is 158760, while the sum is 46.

The square root of 8971957 is about 2995.3225201971. The cubic root of 8971957 is about 207.7921138575.

The spelling of 8971957 in words is "eight million, nine hundred seventy-one thousand, nine hundred fifty-seven".