11696639 has 2 divisors, whose sum is σ = 11696640. Its totient is φ = 11696638.

The previous prime is 11696621. The next prime is 11696669. The reversal of 11696639 is 93669611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11696639 - 2⁸ = 11696383 is a prime.

It is a super-2 number, since 2×11696639² = 273622727792642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11696596 and 11696605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11696669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5848319 + 5848320.

It is an arithmetic number, because the mean of its divisors is an integer number (5848320).

Almost surely, 2^11696639 is an apocalyptic number.

11696639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11696639 is an equidigital number, since it uses as much as digits as its factorization.

11696639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 41.

The square root of 11696639 is about 3420.0349413420. The cubic root of 11696639 is about 226.9971277946.

The spelling of 11696639 in words is "eleven million, six hundred ninety-six thousand, six hundred thirty-nine".