12902399 has 2 divisors, whose sum is σ = 12902400. Its totient is φ = 12902398.

The previous prime is 12902369. The next prime is 12902401. The reversal of 12902399 is 99320921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12902399 is a prime.

Together with 12902401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12902339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451199 + 6451200.

It is an arithmetic number, because the mean of its divisors is an integer number (6451200).

Almost surely, 2^12902399 is an apocalyptic number.

12902399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12902399 is an equidigital number, since it uses as much as digits as its factorization.

12902399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 12902399 is about 3591.9909521044. The cubic root of 12902399 is about 234.5435473611.

The spelling of 12902399 in words is "twelve million, nine hundred two thousand, three hundred ninety-nine".