11638486 has 4 divisors (see below), whose sum is σ = 17457732. Its totient is φ = 5819242.

The previous prime is 11638439. The next prime is 11638493. The reversal of 11638486 is 68483611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68483611 = 7 ⋅9783373.

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 as a sum of consecutive naturals, namely, 2909620 + ... + 2909623.

It is an arithmetic number, because the mean of its divisors is an integer number (4364433).

Almost surely, 2^11638486 is an apocalyptic number.

11638486 is a deficient number, since it is larger than the sum of its proper divisors (5819246).

11638486 is an equidigital number, since it uses as much as digits as its factorization.

11638486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819245.

The product of its digits is 27648, while the sum is 37.

The square root of 11638486 is about 3411.5225340015. The cubic root of 11638486 is about 226.6203101087.

The spelling of 11638486 in words is "eleven million, six hundred thirty-eight thousand, four hundred eighty-six".