12902739 has 4 divisors (see below), whose sum is σ = 17203656. Its totient is φ = 8601824.

The previous prime is 12902717. The next prime is 12902761. The reversal of 12902739 is 93720921.

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

It is an interprime number because it is at equal distance from previous prime (12902717) and next prime (12902761).

It is a cyclic number.

It is not a de Polignac number, because 12902739 - 2⁷ = 12902611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12902339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150454 + ... + 2150459.

It is an arithmetic number, because the mean of its divisors is an integer number (4300914).

Almost surely, 2^12902739 is an apocalyptic number.

12902739 is a deficient number, since it is larger than the sum of its proper divisors (4300917).

12902739 is an equidigital number, since it uses as much as digits as its factorization.

12902739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300916.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 12902739 is about 3592.0382793061. The cubic root of 12902739 is about 234.5456075492.

The spelling of 12902739 in words is "twelve million, nine hundred two thousand, seven hundred thirty-nine".