5279639 has 4 divisors (see below), whose sum is σ = 5590224. Its totient is φ = 4969056.

The previous prime is 5279629. The next prime is 5279671. The reversal of 5279639 is 9369725.

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 5279639 - 2⁴ = 5279623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5279596 and 5279605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5279609) 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, 155267 + ... + 155300.

It is an arithmetic number, because the mean of its divisors is an integer number (1397556).

Almost surely, 2^5279639 is an apocalyptic number.

5279639 is a deficient number, since it is larger than the sum of its proper divisors (310585).

5279639 is a wasteful number, since it uses less digits than its factorization.

5279639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310584.

The product of its digits is 102060, while the sum is 41.

The square root of 5279639 is about 2297.7465047302. The cubic root of 5279639 is about 174.1277852000.

The spelling of 5279639 in words is "five million, two hundred seventy-nine thousand, six hundred thirty-nine".