986974731 has 6 divisors (see below), whose sum is σ = 1425630180. Its totient is φ = 657983148.

The previous prime is 986974717. The next prime is 986974733. The reversal of 986974731 is 137479689.

It is a happy number.

986974731 is a `hidden beast` number, since 9 + 86 + 97 + 473 + 1 = 666.

It is not a de Polignac number, because 986974731 - 2¹⁴ = 986958347 is a prime.

It is a super-2 number, since 2×986974731² = 1948238239265044722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (986974733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54831921 + ... + 54831938.

It is an arithmetic number, because the mean of its divisors is an integer number (237605030).

Almost surely, 2^986974731 is an apocalyptic number.

986974731 is a deficient number, since it is larger than the sum of its proper divisors (438655449).

986974731 is a wasteful number, since it uses less digits than its factorization.

986974731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109663865 (or 109663862 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 986974731 is about 31416.1539816700. The cubic root of 986974731 is about 995.6392552130.

The spelling of 986974731 in words is "nine hundred eighty-six million, nine hundred seventy-four thousand, seven hundred thirty-one".