677349187 has 4 divisors (see below), whose sum is σ = 678406536. Its totient is φ = 676291840.

The previous prime is 677349181. The next prime is 677349191. The reversal of 677349187 is 781943776.

677349187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 677349187 - 2⁷ = 677349059 is a prime.

It is a super-2 number, since 2×677349187² = 917603842259121938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677349181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527713 + ... + 528994.

It is an arithmetic number, because the mean of its divisors is an integer number (169601634).

Almost surely, 2^677349187 is an apocalyptic number.

677349187 is a deficient number, since it is larger than the sum of its proper divisors (1057349).

677349187 is a wasteful number, since it uses less digits than its factorization.

677349187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057348.

The product of its digits is 1778112, while the sum is 52.

The square root of 677349187 is about 26025.9329707890. The cubic root of 677349187 is about 878.2217823648.

The spelling of 677349187 in words is "six hundred seventy-seven million, three hundred forty-nine thousand, one hundred eighty-seven".