677138039 has 4 divisors (see below), whose sum is σ = 677232360. Its totient is φ = 677043720.

The previous prime is 677138027. The next prime is 677138047. The reversal of 677138039 is 930831776.

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 677138039 - 2²⁸ = 408702583 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 (677138069) 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, 35417 + ... + 51074.

It is an arithmetic number, because the mean of its divisors is an integer number (169308090).

Almost surely, 2^677138039 is an apocalyptic number.

677138039 is a deficient number, since it is larger than the sum of its proper divisors (94321).

677138039 is an equidigital number, since it uses as much as digits as its factorization.

677138039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94320.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 677138039 is about 26021.8761621832. The cubic root of 677138039 is about 878.1305177467.

The spelling of 677138039 in words is "six hundred seventy-seven million, one hundred thirty-eight thousand, thirty-nine".