677621804 has 6 divisors (see below), whose sum is σ = 1185838164. Its totient is φ = 338810900.

The previous prime is 677621779. The next prime is 677621809. The reversal of 677621804 is 408126776.

It is not an unprimeable number, because it can be changed into a prime (677621809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84702722 + ... + 84702729.

It is an arithmetic number, because the mean of its divisors is an integer number (197639694).

Almost surely, 2^677621804 is an apocalyptic number.

It is an amenable number.

677621804 is a deficient number, since it is larger than the sum of its proper divisors (508216360).

677621804 is a wasteful number, since it uses less digits than its factorization.

677621804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169405455 (or 169405453 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 677621804 is about 26031.1698546185. The cubic root of 677621804 is about 878.3395877151.

The spelling of 677621804 in words is "six hundred seventy-seven million, six hundred twenty-one thousand, eight hundred four".