981974612 has 6 divisors (see below), whose sum is σ = 1718455578. Its totient is φ = 490987304.

The previous prime is 981974603. The next prime is 981974629. The reversal of 981974612 is 216479189.

It can be written as a sum of positive squares in only one way, i.e., 845879056 + 136095556 = 29084^2 + 11666^2 .

It is a super-2 number, since 2×981974612² = 1928548277225101088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122746823 + ... + 122746830.

It is an arithmetic number, because the mean of its divisors is an integer number (286409263).

Almost surely, 2^981974612 is an apocalyptic number.

It is an amenable number.

981974612 is a deficient number, since it is larger than the sum of its proper divisors (736480966).

981974612 is a wasteful number, since it uses less digits than its factorization.

981974612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245493657 (or 245493655 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 981974612 is about 31336.4741475489. The cubic root of 981974612 is about 993.9550697816.

The spelling of 981974612 in words is "nine hundred eighty-one million, nine hundred seventy-four thousand, six hundred twelve".