12420807 has 16 divisors (see below), whose sum is σ = 19057152. Its totient is φ = 7048800.

The previous prime is 12420791. The next prime is 12420823. The reversal of 12420807 is 70802421.

It is an interprime number because it is at equal distance from previous prime (12420791) and next prime (12420823).

It is not a de Polignac number, because 12420807 - 2⁴ = 12420791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420887) 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, 1213 + ... + 5129.

It is an arithmetic number, because the mean of its divisors is an integer number (1191072).

Almost surely, 2^12420807 is an apocalyptic number.

12420807 is a deficient number, since it is larger than the sum of its proper divisors (6636345).

12420807 is a wasteful number, since it uses less digits than its factorization.

12420807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 12420807 is about 3524.3165294848. The cubic root of 12420807 is about 231.5882945453.

The spelling of 12420807 in words is "twelve million, four hundred twenty thousand, eight hundred seven".