5864639 has 4 divisors (see below), whose sum is σ = 6397800. Its totient is φ = 5331480.

The previous prime is 5864633. The next prime is 5864657. The reversal of 5864639 is 9364685.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5864639 - 2⁴ = 5864623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5864596 and 5864605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5864633) 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, 266564 + ... + 266585.

It is an arithmetic number, because the mean of its divisors is an integer number (1599450).

Almost surely, 2^5864639 is an apocalyptic number.

5864639 is a deficient number, since it is larger than the sum of its proper divisors (533161).

5864639 is a wasteful number, since it uses less digits than its factorization.

5864639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533160.

The product of its digits is 155520, while the sum is 41.

The square root of 5864639 is about 2421.7016744430. The cubic root of 5864639 is about 180.3351676971.

It can be divided in two parts, 58646 and 39, that added together give a palindrome (58685).

The spelling of 5864639 in words is "five million, eight hundred sixty-four thousand, six hundred thirty-nine".