11636690 has 16 divisors (see below), whose sum is σ = 22557528. Its totient is φ = 4296576.

The previous prime is 11636659. The next prime is 11636693. The reversal of 11636690 is 9663611.

It can be written as a sum of positive squares in 4 ways, for example, as 6497401 + 5139289 = 2549^2 + 2267^2 .

It is a super-2 number, since 2×11636690² = 270825108312200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11636693) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 44627 + ... + 44886.

Almost surely, 2^11636690 is an apocalyptic number.

11636690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11636690 is a deficient number, since it is larger than the sum of its proper divisors (10920838).

11636690 is a wasteful number, since it uses less digits than its factorization.

11636690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89533.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 11636690 is about 3411.2592982651. The cubic root of 11636690 is about 226.6086524923.

The spelling of 11636690 in words is "eleven million, six hundred thirty-six thousand, six hundred ninety".