677070978 has 16 divisors (see below), whose sum is σ = 1362768960. Its totient is φ = 224252496.

The previous prime is 677070959. The next prime is 677071009. The reversal of 677070978 is 879070776.

It is a self number, because there is not a number n which added to its sum of digits gives 677070978.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 358438 + ... + 360321.

It is an arithmetic number, because the mean of its divisors is an integer number (85173060).

Almost surely, 2^677070978 is an apocalyptic number.

677070978 is an abundant number, since it is smaller than the sum of its proper divisors (685697982).

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

677070978 is a wasteful number, since it uses less digits than its factorization.

677070978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718921.

The product of its (nonzero) digits is 1037232, while the sum is 51.

The square root of 677070978 is about 26020.5875798376. The cubic root of 677070978 is about 878.1015279635.

The spelling of 677070978 in words is "six hundred seventy-seven million, seventy thousand, nine hundred seventy-eight".