877768428 has 24 divisors (see below), whose sum is σ = 2091704832. Its totient is φ = 286363984.

The previous prime is 877768399. The next prime is 877768537. The reversal of 877768428 is 824867778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777600 + ... + 778727.

It is an arithmetic number, because the mean of its divisors is an integer number (87154368).

Almost surely, 2^877768428 is an apocalyptic number.

It is an amenable number.

877768428 is an abundant number, since it is smaller than the sum of its proper divisors (1213936404).

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

877768428 is a wasteful number, since it uses less digits than its factorization.

877768428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556381 (or 1556379 counting only the distinct ones).

The product of its digits is 8429568, while the sum is 57.

The square root of 877768428 is about 29627.1569341373. The cubic root of 877768428 is about 957.4732555526.

The spelling of 877768428 in words is "eight hundred seventy-seven million, seven hundred sixty-eight thousand, four hundred twenty-eight".