379788139 has 4 divisors (see below), whose sum is σ = 380043000. Its totient is φ = 379533280.

The previous prime is 379788113. The next prime is 379788151. The reversal of 379788139 is 931887973.

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 379788139 - 2⁵ = 379788107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 379788139.

It is not an unprimeable number, because it can be changed into a prime (379786139) 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, 125182 + ... + 128179.

It is an arithmetic number, because the mean of its divisors is an integer number (95010750).

Almost surely, 2^379788139 is an apocalyptic number.

379788139 is a deficient number, since it is larger than the sum of its proper divisors (254861).

379788139 is a wasteful number, since it uses less digits than its factorization.

379788139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254860.

The product of its digits is 2286144, while the sum is 55.

The square root of 379788139 is about 19488.1538119956. The cubic root of 379788139 is about 724.1810103407.

The spelling of 379788139 in words is "three hundred seventy-nine million, seven hundred eighty-eight thousand, one hundred thirty-nine".