11696638 has 4 divisors (see below), whose sum is σ = 17544960. Its totient is φ = 5848318.

The previous prime is 11696621. The next prime is 11696639. The reversal of 11696638 is 83669611.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11696638² = 273622681006088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 11696638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11696639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2924158 + ... + 2924161.

It is an arithmetic number, because the mean of its divisors is an integer number (4386240).

Almost surely, 2^11696638 is an apocalyptic number.

11696638 is a deficient number, since it is larger than the sum of its proper divisors (5848322).

11696638 is an equidigital number, since it uses as much as digits as its factorization.

11696638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848321.

The product of its digits is 46656, while the sum is 40.

The square root of 11696638 is about 3420.0347951446. The cubic root of 11696638 is about 226.9971213256.

The spelling of 11696638 in words is "eleven million, six hundred ninety-six thousand, six hundred thirty-eight".