12890407 has 4 divisors (see below), whose sum is σ = 12914776. Its totient is φ = 12866040.

The previous prime is 12890401. The next prime is 12890429. The reversal of 12890407 is 70409821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70409821 = 317 ⋅222113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12890407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11373 + ... + 12454.

It is an arithmetic number, because the mean of its divisors is an integer number (3228694).

Almost surely, 2^12890407 is an apocalyptic number.

12890407 is a deficient number, since it is larger than the sum of its proper divisors (24369).

12890407 is an equidigital number, since it uses as much as digits as its factorization.

12890407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24368.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12890407 is about 3590.3212948147. The cubic root of 12890407 is about 234.4708601535.

The spelling of 12890407 in words is "twelve million, eight hundred ninety thousand, four hundred seven".