677901887 has 4 divisors (see below), whose sum is σ = 730048200. Its totient is φ = 625755576.

The previous prime is 677901787. The next prime is 677901929. The reversal of 677901887 is 788109776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677901887 - 2²⁰ = 676853311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677901487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26073137 + ... + 26073162.

It is an arithmetic number, because the mean of its divisors is an integer number (182512050).

Almost surely, 2^677901887 is an apocalyptic number.

677901887 is a deficient number, since it is larger than the sum of its proper divisors (52146313).

677901887 is a wasteful number, since it uses less digits than its factorization.

677901887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52146312.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The square root of 677901887 is about 26036.5490608875. The cubic root of 677901887 is about 878.4605864289.

The spelling of 677901887 in words is "six hundred seventy-seven million, nine hundred one thousand, eight hundred eighty-seven".