5724639 has 6 divisors (see below), whose sum is σ = 8268936. Its totient is φ = 3816420.

The previous prime is 5724613. The next prime is 5724661. The reversal of 5724639 is 9364275.

5724639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5724639 - 2⁹ = 5724127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5724679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 318027 + ... + 318044.

It is an arithmetic number, because the mean of its divisors is an integer number (1378156).

Almost surely, 2^5724639 is an apocalyptic number.

5724639 is a deficient number, since it is larger than the sum of its proper divisors (2544297).

5724639 is a wasteful number, since it uses less digits than its factorization.

5724639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636077 (or 636074 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 5724639 is about 2392.6217837343. The cubic root of 5724639 is about 178.8886149936. Note that the first 3 decimals are identical.

The spelling of 5724639 in words is "five million, seven hundred twenty-four thousand, six hundred thirty-nine".