11696989 has 16 divisors (see below), whose sum is σ = 12812800. Its totient is φ = 10641456.

The previous prime is 11696987. The next prime is 11696999. The reversal of 11696989 is 98969611.

It is a cyclic number.

It is not a de Polignac number, because 11696989 - 2¹ = 11696987 is a prime.

It is a super-2 number, since 2×11696989² = 273639103332242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11696981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84082 + ... + 84220.

It is an arithmetic number, because the mean of its divisors is an integer number (800800).

Almost surely, 2^11696989 is an apocalyptic number.

11696989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11696989 is a deficient number, since it is larger than the sum of its proper divisors (1115811).

11696989 is a wasteful number, since it uses less digits than its factorization.

11696989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304.

The product of its digits is 209952, while the sum is 49.

The square root of 11696989 is about 3420.0861100271. The cubic root of 11696989 is about 226.9993919265. Note that the first 3 decimals are identical.

The spelling of 11696989 in words is "eleven million, six hundred ninety-six thousand, nine hundred eighty-nine".