981789336 has 80 divisors (see below), whose sum is σ = 2999933640. Its totient is φ = 297509760.

The previous prime is 981789329. The next prime is 981789371. The reversal of 981789336 is 633987189.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61741 + ... + 75996.

Almost surely, 2^981789336 is an apocalyptic number.

It is an amenable number.

981789336 is an abundant number, since it is smaller than the sum of its proper divisors (2018144304).

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

981789336 is a wasteful number, since it uses less digits than its factorization.

981789336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137766 (or 137753 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 981789336 is about 31333.5177725068. The cubic root of 981789336 is about 993.8925537042.

The spelling of 981789336 in words is "nine hundred eighty-one million, seven hundred eighty-nine thousand, three hundred thirty-six".