11399636 has 12 divisors (see below), whose sum is σ = 19976628. Its totient is φ = 5692032.

The previous prime is 11399629. The next prime is 11399657. The reversal of 11399636 is 63699311.

It can be written as a sum of positive squares in 2 ways, for example, as 11155600 + 244036 = 3340^2 + 494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11399636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2450 + ... + 5366.

It is an arithmetic number, because the mean of its divisors is an integer number (1664719).

Almost surely, 2^11399636 is an apocalyptic number.

It is an amenable number.

11399636 is a deficient number, since it is larger than the sum of its proper divisors (8576992).

11399636 is a wasteful number, since it uses less digits than its factorization.

11399636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898 (or 3896 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The square root of 11399636 is about 3376.3346990487. The cubic root of 11399636 is about 225.0593160486.

The spelling of 11399636 in words is "eleven million, three hundred ninety-nine thousand, six hundred thirty-six".