981790736 has 10 divisors (see below), whose sum is σ = 1902219582. Its totient is φ = 490895360.

The previous prime is 981790717. The next prime is 981790741. The reversal of 981790736 is 637097189.

It can be written as a sum of positive squares in only one way, i.e., 938809600 + 42981136 = 30640^2 + 6556^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30680945 + ... + 30680976.

Almost surely, 2^981790736 is an apocalyptic number.

It is an amenable number.

981790736 is a deficient number, since it is larger than the sum of its proper divisors (920428846).

981790736 is a wasteful number, since it uses less digits than its factorization.

981790736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61361929 (or 61361923 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 981790736 is about 31333.5401127929. The cubic root of 981790736 is about 993.8930261235.

The spelling of 981790736 in words is "nine hundred eighty-one million, seven hundred ninety thousand, seven hundred thirty-six".