828977420 has 12 divisors (see below), whose sum is σ = 1740852624. Its totient is φ = 331590960.

The previous prime is 828977411. The next prime is 828977447. The reversal of 828977420 is 24779828.

It is a happy number.

828977420 is nontrivially palindromic in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20724416 + ... + 20724455.

It is an arithmetic number, because the mean of its divisors is an integer number (145071052).

Almost surely, 2^828977420 is an apocalyptic number.

It is an amenable number.

828977420 is an abundant number, since it is smaller than the sum of its proper divisors (911875204).

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

828977420 is a wasteful number, since it uses less digits than its factorization.

828977420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41448880 (or 41448878 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 828977420 is about 28791.9679771981. The cubic root of 828977420 is about 939.3935351698.

The spelling of 828977420 in words is "eight hundred twenty-eight million, nine hundred seventy-seven thousand, four hundred twenty".