981927924 has 12 divisors (see below), whose sum is σ = 2291165184. Its totient is φ = 327309304.

The previous prime is 981927913. The next prime is 981927953. The reversal of 981927924 is 429729189.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40913652 + ... + 40913675.

It is an arithmetic number, because the mean of its divisors is an integer number (190930432).

Almost surely, 2^981927924 is an apocalyptic number.

It is an amenable number.

981927924 is an abundant number, since it is smaller than the sum of its proper divisors (1309237260).

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

981927924 is a wasteful number, since it uses less digits than its factorization.

981927924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81827334 (or 81827332 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 981927924 is about 31335.7291920900. The cubic root of 981927924 is about 993.9393169949.

The spelling of 981927924 in words is "nine hundred eighty-one million, nine hundred twenty-seven thousand, nine hundred twenty-four".