977959944 has 192 divisors, whose sum is σ = 3033139200. Its totient is φ = 282175488.

The previous prime is 977959909. The next prime is 977959979. The reversal of 977959944 is 449959779.

It is an interprime number because it is at equal distance from previous prime (977959909) and next prime (977959979).

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 47 ways as a sum of consecutive naturals, for example, 2258352 + ... + 2258784.

It is an arithmetic number, because the mean of its divisors is an integer number (15797600).

Almost surely, 2^977959944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 977959944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516569600).

977959944 is an abundant number, since it is smaller than the sum of its proper divisors (2055179256).

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

977959944 is a wasteful number, since it uses less digits than its factorization.

977959944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 597 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 977959944 is about 31272.3511108455. The cubic root of 977959944 is about 992.5986701303.

The spelling of 977959944 in words is "nine hundred seventy-seven million, nine hundred fifty-nine thousand, nine hundred forty-four".