676990139 has 8 divisors (see below), whose sum is σ = 786387168. Its totient is φ = 570764160.

The previous prime is 676990129. The next prime is 676990163. The reversal of 676990139 is 931099676.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 676990139 - 2²⁴ = 660212923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (676990129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792302 + ... + 793155.

It is an arithmetic number, because the mean of its divisors is an integer number (98298396).

Almost surely, 2^676990139 is an apocalyptic number.

676990139 is a deficient number, since it is larger than the sum of its proper divisors (109397029).

676990139 is a wasteful number, since it uses less digits than its factorization.

676990139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585525.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 676990139 is about 26019.0341673168. The cubic root of 676990139 is about 878.0665795475.

The spelling of 676990139 in words is "six hundred seventy-six million, nine hundred ninety thousand, one hundred thirty-nine".