11399964 has 12 divisors (see below), whose sum is σ = 26599944. Its totient is φ = 3799984.

The previous prime is 11399957. The next prime is 11399977. The reversal of 11399964 is 46999311.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474987 + ... + 475010.

It is an arithmetic number, because the mean of its divisors is an integer number (2216662).

Almost surely, 2^11399964 is an apocalyptic number.

It is an amenable number.

11399964 is an abundant number, since it is smaller than the sum of its proper divisors (15199980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11399964 is a wasteful number, since it uses less digits than its factorization.

11399964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950004 (or 950002 counting only the distinct ones).

The product of its digits is 52488, while the sum is 42.

The square root of 11399964 is about 3376.3832720827. The cubic root of 11399964 is about 225.0614745604.

The spelling of 11399964 in words is "eleven million, three hundred ninety-nine thousand, nine hundred sixty-four".