977381448 has 16 divisors (see below), whose sum is σ = 2443453680. Its totient is φ = 325793808.

The previous prime is 977381441. The next prime is 977381453. The reversal of 977381448 is 844183779.

It is a self number, because there is not a number n which added to its sum of digits gives 977381448.

It is not an unprimeable number, because it can be changed into a prime (977381441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20362090 + ... + 20362137.

It is an arithmetic number, because the mean of its divisors is an integer number (152715855).

Almost surely, 2^977381448 is an apocalyptic number.

It is an amenable number.

977381448 is an abundant number, since it is smaller than the sum of its proper divisors (1466072232).

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

977381448 is a wasteful number, since it uses less digits than its factorization.

977381448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40724236 (or 40724232 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 977381448 is about 31263.1004220631. The cubic root of 977381448 is about 992.4029130944.

The spelling of 977381448 in words is "nine hundred seventy-seven million, three hundred eighty-one thousand, four hundred forty-eight".