12439207 has 8 divisors (see below), whose sum is σ = 13703040. Its totient is φ = 11197560.

The previous prime is 12439199. The next prime is 12439211. The reversal of 12439207 is 70293421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12439207 - 2³ = 12439199 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 (12439237) 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, 4357 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (1712880).

Almost surely, 2^12439207 is an apocalyptic number.

12439207 is a deficient number, since it is larger than the sum of its proper divisors (1263833).

12439207 is a wasteful number, since it uses less digits than its factorization.

12439207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 12439207 is about 3526.9259986566. The cubic root of 12439207 is about 231.7025952822.

The spelling of 12439207 in words is "twelve million, four hundred thirty-nine thousand, two hundred seven".