5312639 has 4 divisors (see below), whose sum is σ = 5327256. Its totient is φ = 5298024.

The previous prime is 5312623. The next prime is 5312641. The reversal of 5312639 is 9362135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9362135 = 5 ⋅1872427.

It is a cyclic number.

It is not a de Polignac number, because 5312639 - 2⁴ = 5312623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312669) 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 3 ways as a sum of consecutive naturals, for example, 6749 + ... + 7494.

It is an arithmetic number, because the mean of its divisors is an integer number (1331814).

Almost surely, 2^5312639 is an apocalyptic number.

5312639 is a deficient number, since it is larger than the sum of its proper divisors (14617).

5312639 is a wasteful number, since it uses less digits than its factorization.

5312639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14616.

The product of its digits is 4860, while the sum is 29.

The square root of 5312639 is about 2304.9162674596. The cubic root of 5312639 is about 174.4898229711.

The spelling of 5312639 in words is "five million, three hundred twelve thousand, six hundred thirty-nine".