3138879 has 8 divisors (see below), whose sum is σ = 4367232. Its totient is φ = 2001560.

The previous prime is 3138869. The next prime is 3138881. The reversal of 3138879 is 9788313.

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 3138879 - 2⁵ = 3138847 is a prime.

It is a super-2 number, since 2×3138879² = 19705122753282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138809) 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, 22677 + ... + 22814.

It is an arithmetic number, because the mean of its divisors is an integer number (545904).

Almost surely, 2^3138879 is an apocalyptic number.

3138879 is a deficient number, since it is larger than the sum of its proper divisors (1228353).

3138879 is a wasteful number, since it uses less digits than its factorization.

3138879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45517.

The product of its digits is 36288, while the sum is 39.

The square root of 3138879 is about 1771.6881779817. The cubic root of 3138879 is about 146.4170069675.

The spelling of 3138879 in words is "three million, one hundred thirty-eight thousand, eight hundred seventy-nine".