12985407 has 8 divisors (see below), whose sum is σ = 19237680. Its totient is φ = 8656920.

The previous prime is 12985393. The next prime is 12985421. The reversal of 12985407 is 70458921.

12985407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12985393) and next prime (12985421).

It is not a de Polignac number, because 12985407 - 2⁴ = 12985391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985447) 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, 240444 + ... + 240497.

It is an arithmetic number, because the mean of its divisors is an integer number (2404710).

Almost surely, 2^12985407 is an apocalyptic number.

12985407 is a deficient number, since it is larger than the sum of its proper divisors (6252273).

12985407 is an equidigital number, since it uses as much as digits as its factorization.

12985407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480950 (or 480944 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12985407 is about 3603.5270222381. The cubic root of 12985407 is about 235.0454537097.

The spelling of 12985407 in words is "twelve million, nine hundred eighty-five thousand, four hundred seven".