12308739 has 8 divisors (see below), whose sum is σ = 16481280. Its totient is φ = 8171016.

The previous prime is 12308717. The next prime is 12308743. The reversal of 12308739 is 93780321.

12308739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12308739 - 2⁹ = 12308227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12308759) 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, 7867 + ... + 9300.

It is an arithmetic number, because the mean of its divisors is an integer number (2060160).

Almost surely, 2^12308739 is an apocalyptic number.

12308739 is a deficient number, since it is larger than the sum of its proper divisors (4172541).

12308739 is a wasteful number, since it uses less digits than its factorization.

12308739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17409.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12308739 is about 3508.3812506625. The cubic root of 12308739 is about 230.8896795232.

The spelling of 12308739 in words is "twelve million, three hundred eight thousand, seven hundred thirty-nine".