977171712 has 144 divisors (see below), whose sum is σ = 2867225088. Its totient is φ = 292976640.

The previous prime is 977171707. The next prime is 977171743. The reversal of 977171712 is 217171779.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869583 + ... + 870705.

Almost surely, 2^977171712 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 977171712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433612544).

977171712 is an abundant number, since it is smaller than the sum of its proper divisors (1890053376).

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

977171712 is a wasteful number, since it uses less digits than its factorization.

977171712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1242 counting only the distinct ones).

The product of its digits is 43218, while the sum is 42.

The square root of 977171712 is about 31259.7458722876. The cubic root of 977171712 is about 992.3319215322.

The spelling of 977171712 in words is "nine hundred seventy-seven million, one hundred seventy-one thousand, seven hundred twelve".