5645636 has 24 divisors (see below), whose sum is σ = 10168704. Its totient is φ = 2741760.

The previous prime is 5645623. The next prime is 5645639. The reversal of 5645636 is 6365465.

It is a junction number, because it is equal to n+sod(n) for n = 5645596 and 5645605.

It is not an unprimeable number, because it can be changed into a prime (5645639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29156 + ... + 29348.

It is an arithmetic number, because the mean of its divisors is an integer number (423696).

Almost surely, 2^5645636 is an apocalyptic number.

It is an amenable number.

5645636 is a deficient number, since it is larger than the sum of its proper divisors (4523068).

5645636 is a wasteful number, since it uses less digits than its factorization.

5645636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 5645636 is about 2376.0547131748. The cubic root of 5645636 is about 178.0618814429.

Multiplying 5645636 by its sum of digits (35), we get a triangular number (197597260 = T₁₉₈₇₉).

The spelling of 5645636 in words is "five million, six hundred forty-five thousand, six hundred thirty-six".