11638475 has 12 divisors (see below), whose sum is σ = 14567520. Its totient is φ = 9223200.

The previous prime is 11638439. The next prime is 11638493. The reversal of 11638475 is 57483611.

It is not a de Polignac number, because 11638475 - 2⁶ = 11638411 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (1213960).

Almost surely, 2^11638475 is an apocalyptic number.

11638475 is a deficient number, since it is larger than the sum of its proper divisors (2929045).

11638475 is a wasteful number, since it uses less digits than its factorization.

11638475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4390 (or 4385 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 11638475 is about 3411.5209218177. The cubic root of 11638475 is about 226.6202387127.

The spelling of 11638475 in words is "eleven million, six hundred thirty-eight thousand, four hundred seventy-five".