981083564 has 12 divisors (see below), whose sum is σ = 1763299104. Its totient is φ = 477283824.

The previous prime is 981083503. The next prime is 981083591. The reversal of 981083564 is 465380189.

It is a super-3 number, since 3×981083564³ (a number of 28 digits) contains 333 as substring.

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, 3314324 + ... + 3314619.

It is an arithmetic number, because the mean of its divisors is an integer number (146941592).

Almost surely, 2^981083564 is an apocalyptic number.

It is an amenable number.

981083564 is a deficient number, since it is larger than the sum of its proper divisors (782215540).

981083564 is a wasteful number, since it uses less digits than its factorization.

981083564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628984 (or 6628982 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 981083564 is about 31322.2534949196. The cubic root of 981083564 is about 993.6543390955.

The spelling of 981083564 in words is "nine hundred eighty-one million, eighty-three thousand, five hundred sixty-four".