11999964 has 24 divisors (see below), whose sum is σ = 28058128.
Its totient is φ = 3991680.
The previous prime is 11999941. The next prime is 11999987. The reversal of 11999964 is 46999911.
It is an interprime number because it is at equal distance from previous prime (11999941) and next prime (11999987).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8424 + ... + 9744.
Almost surely, 211999964 is an apocalyptic number.
It is an amenable number.
11999964 is an abundant number, since it is smaller than the sum of its proper divisors (16058164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11999964 is a wasteful number, since it uses less digits than its factorization.
11999964 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2085 (or 2083 counting only the distinct ones).
The product of its digits is 157464, while the sum is 48.
The square root of 11999964 is about 3464.0964189814.
The cubic root of 11999964 is about 228.9426195676.
The spelling of 11999964 in words is "eleven million, nine hundred ninety-nine thousand, nine hundred sixty-four".