11621745 has 32 divisors (see below), whose sum is σ = 21335040. Its totient is φ = 5996160.

The previous prime is 11621723. The next prime is 11621773. The reversal of 11621745 is 54712611.

It is a happy number.

11621745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11621745 - 2¹⁴ = 11605361 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2797 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (666720).

Almost surely, 2^11621745 is an apocalyptic number.

11621745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11621745 is a deficient number, since it is larger than the sum of its proper divisors (9713295).

11621745 is a wasteful number, since it uses less digits than its factorization.

11621745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2816 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 11621745 is about 3409.0680544688. The cubic root of 11621745 is about 226.5115997743.

The spelling of 11621745 in words is "eleven million, six hundred twenty-one thousand, seven hundred forty-five".