11604621 has 24 divisors (see below), whose sum is σ = 18221760. Its totient is φ = 6549312.

The previous prime is 11604617. The next prime is 11604623. The reversal of 11604621 is 12640611.

It is not a de Polignac number, because 11604621 - 2² = 11604617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11604623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12640 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (759240).

Almost surely, 2^11604621 is an apocalyptic number.

It is an amenable number.

11604621 is a deficient number, since it is larger than the sum of its proper divisors (6617139).

11604621 is an equidigital number, since it uses as much as digits as its factorization.

11604621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11604621 is about 3406.5555917965. Note that the first 4 decimals coincide. The cubic root of 11604621 is about 226.4002943076.

The spelling of 11604621 in words is "eleven million, six hundred four thousand, six hundred twenty-one".