12408657 has 16 divisors (see below), whose sum is σ = 17589312. Its totient is φ = 7754240.

The previous prime is 12408631. The next prime is 12408659. The reversal of 12408657 is 75680421.

12408657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12408657 - 2¹⁴ = 12392273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12408659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23557 + ... + 24077.

It is an arithmetic number, because the mean of its divisors is an integer number (1099332).

Almost surely, 2^12408657 is an apocalyptic number.

12408657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12408657 is a deficient number, since it is larger than the sum of its proper divisors (5180655).

12408657 is a wasteful number, since it uses less digits than its factorization.

12408657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12408657 is about 3522.5923692644. The cubic root of 12408657 is about 231.5127568941.

The spelling of 12408657 in words is "twelve million, four hundred eight thousand, six hundred fifty-seven".