12902947 has 4 divisors (see below), whose sum is σ = 12974416. Its totient is φ = 12831480.

The previous prime is 12902891. The next prime is 12902951. The reversal of 12902947 is 74920921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12902947 - 2²³ = 4514339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12902347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35463 + ... + 35824.

It is an arithmetic number, because the mean of its divisors is an integer number (3243604).

Almost surely, 2^12902947 is an apocalyptic number.

12902947 is a deficient number, since it is larger than the sum of its proper divisors (71469).

12902947 is an equidigital number, since it uses as much as digits as its factorization.

12902947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71468.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 12902947 is about 3592.0672321102. The cubic root of 12902947 is about 234.5468678817.

The spelling of 12902947 in words is "twelve million, nine hundred two thousand, nine hundred forty-seven".