11634639 has 8 divisors (see below), whose sum is σ = 15873792. Its totient is φ = 7575960.

The previous prime is 11634629. The next prime is 11634643. The reversal of 11634639 is 93643611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11634639 - 2¹⁷ = 11503567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11634629) 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, 44967 + ... + 45224.

It is an arithmetic number, because the mean of its divisors is an integer number (1984224).

Almost surely, 2^11634639 is an apocalyptic number.

11634639 is a deficient number, since it is larger than the sum of its proper divisors (4239153).

11634639 is an equidigital number, since it uses as much as digits as its factorization.

11634639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90237.

The product of its digits is 11664, while the sum is 33.

The square root of 11634639 is about 3410.9586628982. The cubic root of 11634639 is about 226.5953382350.

The spelling of 11634639 in words is "eleven million, six hundred thirty-four thousand, six hundred thirty-nine".