3879139215 has 16 divisors (see below), whose sum is σ = 7093283328. Its totient is φ = 1773320736.

The previous prime is 3879139193. The next prime is 3879139241. The reversal of 3879139215 is 5129319783.

It is not a de Polignac number, because 3879139215 - 2⁷ = 3879139087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18471987 + ... + 18472196.

It is an arithmetic number, because the mean of its divisors is an integer number (443330208).

Almost surely, 2^3879139215 is an apocalyptic number.

3879139215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3879139215 is a deficient number, since it is larger than the sum of its proper divisors (3214144113).

3879139215 is a wasteful number, since it uses less digits than its factorization.

3879139215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36944198.

The product of its digits is 408240, while the sum is 48.

The square root of 3879139215 is about 62282.7360911513. The cubic root of 3879139215 is about 1571.2493895440.

The spelling of 3879139215 in words is "three billion, eight hundred seventy-nine million, one hundred thirty-nine thousand, two hundred fifteen".