386149879 has 4 divisors (see below), whose sum is σ = 389097720. Its totient is φ = 383202040.

The previous prime is 386149873. The next prime is 386149903. The reversal of 386149879 is 978941683.

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 386149879 - 2²¹ = 384052727 is a prime.

It is a super-2 number, since 2×386149879² = 298223458103429282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386149873) 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, 1473724 + ... + 1473985.

It is an arithmetic number, because the mean of its divisors is an integer number (97274430).

Almost surely, 2^386149879 is an apocalyptic number.

386149879 is a deficient number, since it is larger than the sum of its proper divisors (2947841).

386149879 is a wasteful number, since it uses less digits than its factorization.

386149879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947840.

The product of its digits is 2612736, while the sum is 55.

The square root of 386149879 is about 19650.6966543174. The cubic root of 386149879 is about 728.2021681959.

The spelling of 386149879 in words is "three hundred eighty-six million, one hundred forty-nine thousand, eight hundred seventy-nine".