11397663 has 12 divisors (see below), whose sum is σ = 17330040. Its totient is φ = 7198416.

The previous prime is 11397629. The next prime is 11397689. The reversal of 11397663 is 36679311.

It is not a de Polignac number, because 11397663 - 2¹⁰ = 11396639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11397163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33156 + ... + 33497.

It is an arithmetic number, because the mean of its divisors is an integer number (1444170).

Almost surely, 2^11397663 is an apocalyptic number.

11397663 is a deficient number, since it is larger than the sum of its proper divisors (5932377).

11397663 is a wasteful number, since it uses less digits than its factorization.

11397663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66678 (or 66675 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 11397663 is about 3376.0425056566. The cubic root of 11397663 is about 225.0463311997.

The spelling of 11397663 in words is "eleven million, three hundred ninety-seven thousand, six hundred sixty-three".