12409655 has 8 divisors (see below), whose sum is σ = 14949792. Its totient is φ = 9888928.

The previous prime is 12409637. The next prime is 12409667. The reversal of 12409655 is 55690421.

It is a happy number.

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 12409655 - 2¹⁰ = 12408631 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3404 + ... + 6033.

It is an arithmetic number, because the mean of its divisors is an integer number (1868724).

Almost surely, 2^12409655 is an apocalyptic number.

12409655 is a deficient number, since it is larger than the sum of its proper divisors (2540137).

12409655 is an equidigital number, since it uses as much as digits as its factorization.

12409655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 12409655 is about 3522.7340234539. The cubic root of 12409655 is about 231.5189634088.

The spelling of 12409655 in words is "twelve million, four hundred nine thousand, six hundred fifty-five".