11621664 has 48 divisors (see below), whose sum is σ = 33899040. Its totient is φ = 3873600.

The previous prime is 11621657. The next prime is 11621671. The reversal of 11621664 is 46612611.

It is an interprime number because it is at equal distance from previous prime (11621657) and next prime (11621671).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

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, 5862 + ... + 7589.

It is an arithmetic number, because the mean of its divisors is an integer number (706230).

Almost surely, 2^11621664 is an apocalyptic number.

It is an amenable number.

11621664 is an abundant number, since it is smaller than the sum of its proper divisors (22277376).

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

11621664 is a wasteful number, since it uses less digits than its factorization.

11621664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13470 (or 13456 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11621664 is about 3409.0561743685. The cubic root of 11621664 is about 226.5110735343.

The spelling of 11621664 in words is "eleven million, six hundred twenty-one thousand, six hundred sixty-four".