12899293 has 4 divisors (see below), whose sum is σ = 14071968. Its totient is φ = 11726620.

The previous prime is 12899281. The next prime is 12899303. The reversal of 12899293 is 39299821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12899293 - 2¹⁷ = 12768221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899203) 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, 586321 + ... + 586342.

It is an arithmetic number, because the mean of its divisors is an integer number (3517992).

Almost surely, 2^12899293 is an apocalyptic number.

It is an amenable number.

12899293 is a deficient number, since it is larger than the sum of its proper divisors (1172675).

12899293 is a wasteful number, since it uses less digits than its factorization.

12899293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172674.

The product of its digits is 69984, while the sum is 43.

The square root of 12899293 is about 3591.5585753263. The cubic root of 12899293 is about 234.5247252613.

The spelling of 12899293 in words is "twelve million, eight hundred ninety-nine thousand, two hundred ninety-three".