11989996 has 6 divisors (see below), whose sum is σ = 20982500. Its totient is φ = 5994996.

The previous prime is 11989993. The next prime is 11989997. The reversal of 11989996 is 69998911.

It is not an unprimeable number, because it can be changed into a prime (11989993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498746 + ... + 1498753.

Almost surely, 2^11989996 is an apocalyptic number.

It is an amenable number.

11989996 is a deficient number, since it is larger than the sum of its proper divisors (8992504).

11989996 is a wasteful number, since it uses less digits than its factorization.

11989996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997503 (or 2997501 counting only the distinct ones).

The product of its digits is 314928, while the sum is 52.

The square root of 11989996 is about 3462.6573610451. The cubic root of 11989996 is about 228.8792101492.

The spelling of 11989996 in words is "eleven million, nine hundred eighty-nine thousand, nine hundred ninety-six".