12974739 has 8 divisors (see below), whose sum is σ = 18210240. Its totient is φ = 8194536.

The previous prime is 12974729. The next prime is 12974743. The reversal of 12974739 is 93747921.

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

It is a de Polignac number, because none of the positive numbers 2^k-12974739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12974739.

It is not an unprimeable number, because it can be changed into a prime (12974719) 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, 113757 + ... + 113870.

It is an arithmetic number, because the mean of its divisors is an integer number (2276280).

Almost surely, 2^12974739 is an apocalyptic number.

12974739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12974739 is a deficient number, since it is larger than the sum of its proper divisors (5235501).

12974739 is a wasteful number, since it uses less digits than its factorization.

12974739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227649.

The product of its digits is 95256, while the sum is 42.

The square root of 12974739 is about 3602.0465016432. The cubic root of 12974739 is about 234.9810698498.

The spelling of 12974739 in words is "twelve million, nine hundred seventy-four thousand, seven hundred thirty-nine".