11639896 has 8 divisors (see below), whose sum is σ = 21824820. Its totient is φ = 5819944.

The previous prime is 11639893. The next prime is 11639897. The reversal of 11639896 is 69893611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727486 + ... + 727501.

Almost surely, 2^11639896 is an apocalyptic number.

It is an amenable number.

11639896 is a deficient number, since it is larger than the sum of its proper divisors (10184924).

11639896 is a wasteful number, since it uses less digits than its factorization.

11639896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454993 (or 1454989 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 11639896 is about 3411.7291803424. The cubic root of 11639896 is about 226.6294614059.

The spelling of 11639896 in words is "eleven million, six hundred thirty-nine thousand, eight hundred ninety-six".