677880540 has 72 divisors (see below), whose sum is σ = 2086964880. Its totient is φ = 178066944.

The previous prime is 677880493. The next prime is 677880551. The reversal of 677880540 is 45088776.

677880540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16045 + ... + 40164.

Almost surely, 2^677880540 is an apocalyptic number.

677880540 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

677880540 is an abundant number, since it is smaller than the sum of its proper divisors (1409084340).

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

677880540 is a wasteful number, since it uses less digits than its factorization.

677880540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56291 (or 56286 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 677880540 is about 26036.1391146998. The cubic root of 677880540 is about 878.4513654805.

The spelling of 677880540 in words is "six hundred seventy-seven million, eight hundred eighty thousand, five hundred forty".