974331731 has 2 divisors, whose sum is σ = 974331732. Its totient is φ = 974331730.

The previous prime is 974331713. The next prime is 974331739. The reversal of 974331731 is 137133479.

Together with previous prime (974331713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-974331731 is a prime.

It is a super-2 number, since 2×974331731² = 1898644644066912722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (974331739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487165865 + 487165866.

It is an arithmetic number, because the mean of its divisors is an integer number (487165866).

Almost surely, 2^974331731 is an apocalyptic number.

974331731 is a deficient number, since it is larger than the sum of its proper divisors (1).

974331731 is an equidigital number, since it uses as much as digits as its factorization.

974331731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 38.

The square root of 974331731 is about 31214.2872896371. The cubic root of 974331731 is about 991.3696415177.

The spelling of 974331731 in words is "nine hundred seventy-four million, three hundred thirty-one thousand, seven hundred thirty-one".