981948736 has 28 divisors (see below), whose sum is σ = 1966445140. Its totient is φ = 486466560.

The previous prime is 981948727. The next prime is 981948757. The reversal of 981948736 is 637849189.

It can be written as a sum of positive squares in 2 ways, for example, as 287099136 + 694849600 = 16944^2 + 26360^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63405 + ... + 77356.

Almost surely, 2^981948736 is an apocalyptic number.

It is an amenable number.

981948736 is an abundant number, since it is smaller than the sum of its proper divisors (984496404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981948736 is a wasteful number, since it uses less digits than its factorization.

981948736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140882 (or 140872 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 55.

The square root of 981948736 is about 31336.0612713213. The cubic root of 981948736 is about 993.9463391393.

The spelling of 981948736 in words is "nine hundred eighty-one million, nine hundred forty-eight thousand, seven hundred thirty-six".