977650416 has 120 divisors (see below), whose sum is σ = 2944949904. Its totient is φ = 301639680.

The previous prime is 977650409. The next prime is 977650439. The reversal of 977650416 is 614056779.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146055 + ... + 152601.

Almost surely, 2^977650416 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 977650416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472474952).

977650416 is an abundant number, since it is smaller than the sum of its proper divisors (1967299488).

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

977650416 is a wasteful number, since it uses less digits than its factorization.

977650416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6639 (or 6630 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 977650416 is about 31267.4018108317. The cubic root of 977650416 is about 992.4939386763.

The spelling of 977650416 in words is "nine hundred seventy-seven million, six hundred fifty thousand, four hundred sixteen".