12621593 has 8 divisors (see below), whose sum is σ = 12862080. Its totient is φ = 12383280.

The previous prime is 12621589. The next prime is 12621607. The reversal of 12621593 is 39512621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12621593 - 2² = 12621589 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12621523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15158 + ... + 15968.

It is an arithmetic number, because the mean of its divisors is an integer number (1607760).

Almost surely, 2^12621593 is an apocalyptic number.

It is an amenable number.

12621593 is a deficient number, since it is larger than the sum of its proper divisors (240487).

12621593 is an equidigital number, since it uses as much as digits as its factorization.

12621593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its digits is 3240, while the sum is 29.

The square root of 12621593 is about 3552.6881371716. The cubic root of 12621593 is about 232.8295277217.

The spelling of 12621593 in words is "twelve million, six hundred twenty-one thousand, five hundred ninety-three".