977138416 has 40 divisors (see below), whose sum is σ = 1920908304. Its totient is φ = 481451520.

The previous prime is 977138411. The next prime is 977138419. The reversal of 977138416 is 614831779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977138411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739036 + ... + 740356.

Almost surely, 2^977138416 is an apocalyptic number.

It is an amenable number.

977138416 is a deficient number, since it is larger than the sum of its proper divisors (943769888).

977138416 is a wasteful number, since it uses less digits than its factorization.

977138416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969 (or 1963 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 977138416 is about 31259.2132978423. The cubic root of 977138416 is about 992.3206505486.

The spelling of 977138416 in words is "nine hundred seventy-seven million, one hundred thirty-eight thousand, four hundred sixteen".