677434788 has 36 divisors (see below), whose sum is σ = 1714589968. Its totient is φ = 225523440.

The previous prime is 677434787. The next prime is 677434831. The reversal of 677434788 is 887434776.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (677434787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17595 + ... + 40797.

Almost surely, 2^677434788 is an apocalyptic number.

It is an amenable number.

677434788 is an abundant number, since it is smaller than the sum of its proper divisors (1037155180).

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

677434788 is a wasteful number, since it uses less digits than its factorization.

677434788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24024 (or 24019 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 54.

The square root of 677434788 is about 26027.5774516185. The cubic root of 677434788 is about 878.2587763297.

The spelling of 677434788 in words is "six hundred seventy-seven million, four hundred thirty-four thousand, seven hundred eighty-eight".