977755842 has 48 divisors (see below), whose sum is σ = 2425250880. Its totient is φ = 278881056.

The previous prime is 977755787. The next prime is 977755843. The reversal of 977755842 is 248557779.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (977755843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70909 + ... + 83567.

It is an arithmetic number, because the mean of its divisors is an integer number (50526060).

Almost surely, 2^977755842 is an apocalyptic number.

977755842 is an abundant number, since it is smaller than the sum of its proper divisors (1447495038).

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

977755842 is a wasteful number, since it uses less digits than its factorization.

977755842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287 (or 13284 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The square root of 977755842 is about 31269.0876425904. The cubic root of 977755842 is about 992.5296129498.

The spelling of 977755842 in words is "nine hundred seventy-seven million, seven hundred fifty-five thousand, eight hundred forty-two".