5399631 has 6 divisors (see below), whose sum is σ = 7799480. Its totient is φ = 3599748.

The previous prime is 5399627. The next prime is 5399633. The reversal of 5399631 is 1369935.

5399631 is a `hidden beast` number, since 539 + 96 + 31 = 666.

It is not a de Polignac number, because 5399631 - 2² = 5399627 is a prime.

It is a super-2 number, since 2×5399631² = 58312029872322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5399633) 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 5 ways as a sum of consecutive naturals, for example, 299971 + ... + 299988.

Almost surely, 2^5399631 is an apocalyptic number.

5399631 is a deficient number, since it is larger than the sum of its proper divisors (2399849).

5399631 is a wasteful number, since it uses less digits than its factorization.

5399631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599965 (or 599962 counting only the distinct ones).

The product of its digits is 21870, while the sum is 36.

The square root of 5399631 is about 2323.7106102095. The cubic root of 5399631 is about 175.4370680442.

Subtracting from 5399631 its product of digits (21870), we obtain a square (5377761 = 2319²).

The spelling of 5399631 in words is "five million, three hundred ninety-nine thousand, six hundred thirty-one".