981713642 has 64 divisors (see below), whose sum is σ = 1882718208. Its totient is φ = 373464000.

The previous prime is 981713639. The next prime is 981713657. The reversal of 981713642 is 246317189.

981713642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 981713642.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1077167 + ... + 1078077.

It is an arithmetic number, because the mean of its divisors is an integer number (29417472).

Almost surely, 2^981713642 is an apocalyptic number.

981713642 is a deficient number, since it is larger than the sum of its proper divisors (901004566).

981713642 is a wasteful number, since it uses less digits than its factorization.

981713642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155.

The product of its digits is 72576, while the sum is 41.

The square root of 981713642 is about 31332.3098733560. The cubic root of 981713642 is about 993.8670106697.

The spelling of 981713642 in words is "nine hundred eighty-one million, seven hundred thirteen thousand, six hundred forty-two".