5138979 has 8 divisors (see below), whose sum is σ = 6918912. Its totient is φ = 3392520.

The previous prime is 5138977. The next prime is 5139019. The reversal of 5138979 is 9798315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5138979 - 2¹ = 5138977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5138979.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8007 + ... + 8624.

It is an arithmetic number, because the mean of its divisors is an integer number (864864).

Almost surely, 2^5138979 is an apocalyptic number.

5138979 is a deficient number, since it is larger than the sum of its proper divisors (1779933).

5138979 is a wasteful number, since it uses less digits than its factorization.

5138979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16737.

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

The square root of 5138979 is about 2266.9316266707. The cubic root of 5138979 is about 172.5674762276.

The spelling of 5138979 in words is "five million, one hundred thirty-eight thousand, nine hundred seventy-nine".