977956 has 24 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 410592.

The previous prime is 977927. The next prime is 977971. The reversal of 977956 is 659779.

977956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155 + ... + 1813.

It is an arithmetic number, because the mean of its divisors is an integer number (83160).

2⁹⁷⁷⁹⁵⁶ 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 977956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (997920).

977956 is an abundant number, since it is smaller than the sum of its proper divisors (1017884).

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

977956 is a wasteful number, since it uses less digits than its factorization.

977956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its digits is 119070, while the sum is 43.

The square root of 977956 is about 988.9165788882. The cubic root of 977956 is about 99.2597335783.

The spelling of 977956 in words is "nine hundred seventy-seven thousand, nine hundred fifty-six".