12902423 has 2 divisors, whose sum is σ = 12902424. Its totient is φ = 12902422.

The previous prime is 12902401. The next prime is 12902431. The reversal of 12902423 is 32420921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12902423 - 2²⁰ = 11853847 is a prime.

It is a Sophie Germain prime.

It is equal to p₈₄₃₃₃₂ and since 12902423 and 843332 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12901423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451211 + 6451212.

It is an arithmetic number, because the mean of its divisors is an integer number (6451212).

Almost surely, 2^12902423 is an apocalyptic number.

12902423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12902423 is an equidigital number, since it uses as much as digits as its factorization.

12902423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12902423 is about 3591.9942928685. The cubic root of 12902423 is about 234.5436927873.

The spelling of 12902423 in words is "twelve million, nine hundred two thousand, four hundred twenty-three".