8974639931 has 2 divisors, whose sum is σ = 8974639932. Its totient is φ = 8974639930.

The previous prime is 8974639901. The next prime is 8974639943. The reversal of 8974639931 is 1399364798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8974639931 - 2⁶ = 8974639867 is a prime.

It is a super-2 number, since 2×8974639931² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8974639901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4487319965 + 4487319966.

It is an arithmetic number, because the mean of its divisors is an integer number (4487319966).

Almost surely, 2^8974639931 is an apocalyptic number.

8974639931 is a deficient number, since it is larger than the sum of its proper divisors (1).

8974639931 is an equidigital number, since it uses as much as digits as its factorization.

8974639931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 59.

The square root of 8974639931 is about 94734.5762169230. The cubic root of 8974639931 is about 2078.1282417907.

The spelling of 8974639931 in words is "eight billion, nine hundred seventy-four million, six hundred thirty-nine thousand, nine hundred thirty-one".