11538963 has 8 divisors (see below), whose sum is σ = 17094800. Its totient is φ = 7692624.

The previous prime is 11538959. The next prime is 11538973. The reversal of 11538963 is 36983511.

It is a happy number.

It is not a de Polignac number, because 11538963 - 2² = 11538959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11538953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213658 + ... + 213711.

It is an arithmetic number, because the mean of its divisors is an integer number (2136850).

Almost surely, 2^11538963 is an apocalyptic number.

11538963 is a deficient number, since it is larger than the sum of its proper divisors (5555837).

11538963 is an equidigital number, since it uses as much as digits as its factorization.

11538963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427378 (or 427372 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 11538963 is about 3396.9049147717. The cubic root of 11538963 is about 225.9725016795.

The spelling of 11538963 in words is "eleven million, five hundred thirty-eight thousand, nine hundred sixty-three".