5139879 has 16 divisors (see below), whose sum is σ = 7210752. Its totient is φ = 3250368.

The previous prime is 5139877. The next prime is 5139881. The reversal of 5139879 is 9789315.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5139877) and next prime (5139881).

It is not a de Polignac number, because 5139879 - 2¹ = 5139877 is a prime.

It is a super-2 number, since 2×5139879² = 52836712269282, which contains 22 as substring.

It is an Ulam number.

5139879 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5139879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11019 + ... + 11475.

It is an arithmetic number, because the mean of its divisors is an integer number (450672).

Almost surely, 2^5139879 is an apocalyptic number.

5139879 is a deficient number, since it is larger than the sum of its proper divisors (2070873).

5139879 is a wasteful number, since it uses less digits than its factorization.

5139879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 68040, while the sum is 42.

The square root of 5139879 is about 2267.1301241878. The cubic root of 5139879 is about 172.5775496724.

The spelling of 5139879 in words is "five million, one hundred thirty-nine thousand, eight hundred seventy-nine".