12923894 has 4 divisors (see below), whose sum is σ = 19385844. Its totient is φ = 6461946.

The previous prime is 12923873. The next prime is 12923903. The reversal of 12923894 is 49832921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49832921 = 659 ⋅75619.

It is a super-2 number, since 2×12923894² = 334054072246472, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230972 + ... + 3230975.

It is an arithmetic number, because the mean of its divisors is an integer number (4846461).

Almost surely, 2^12923894 is an apocalyptic number.

12923894 is a deficient number, since it is larger than the sum of its proper divisors (6461950).

12923894 is an equidigital number, since it uses as much as digits as its factorization.

12923894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461949.

The product of its digits is 31104, while the sum is 38.

The square root of 12923894 is about 3594.9817802042. The cubic root of 12923894 is about 234.6737225445.

The spelling of 12923894 in words is "twelve million, nine hundred twenty-three thousand, eight hundred ninety-four".