11613965 has 16 divisors (see below), whose sum is σ = 15866496. Its totient is φ = 8078400.

The previous prime is 11613937. The next prime is 11613977. The reversal of 11613965 is 56931611.

It is a happy number.

11613965 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11613965 - 2¹² = 11609869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3326 + ... + 5855.

It is an arithmetic number, because the mean of its divisors is an integer number (991656).

Almost surely, 2^11613965 is an apocalyptic number.

It is an amenable number.

11613965 is a deficient number, since it is larger than the sum of its proper divisors (4252531).

11613965 is a wasteful number, since it uses less digits than its factorization.

11613965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9220.

The product of its digits is 4860, while the sum is 32.

The square root of 11613965 is about 3407.9267891197. The cubic root of 11613965 is about 226.4610435790.

The spelling of 11613965 in words is "eleven million, six hundred thirteen thousand, nine hundred sixty-five".