11964855 has 32 divisors (see below), whose sum is σ = 23169024. Its totient is φ = 5147136.

The previous prime is 11964839. The next prime is 11964857. The reversal of 11964855 is 55846911.

It is not a de Polignac number, because 11964855 - 2⁴ = 11964839 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11964857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1567 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (724032).

Almost surely, 2^11964855 is an apocalyptic number.

11964855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11964855 is a deficient number, since it is larger than the sum of its proper divisors (11204169).

11964855 is a wasteful number, since it uses less digits than its factorization.

11964855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6735.

The product of its digits is 43200, while the sum is 39.

The square root of 11964855 is about 3459.0251516865. The cubic root of 11964855 is about 228.7191245019.

The spelling of 11964855 in words is "eleven million, nine hundred sixty-four thousand, eight hundred fifty-five".