12498939 has 12 divisors (see below), whose sum is σ = 18474456. Its totient is φ = 8138592.

The previous prime is 12498931. The next prime is 12498949. The reversal of 12498939 is 93989421.

It is not a de Polignac number, because 12498939 - 2³ = 12498931 is a prime.

It is a super-2 number, since 2×12498939² = 312446952251442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12498894 and 12498903.

It is not an unprimeable number, because it can be changed into a prime (12498931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15762 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (1539538).

Almost surely, 2^12498939 is an apocalyptic number.

12498939 is a deficient number, since it is larger than the sum of its proper divisors (5975517).

12498939 is a wasteful number, since it uses less digits than its factorization.

12498939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32346 (or 32343 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 12498939 is about 3535.3838546896. The cubic root of 12498939 is about 232.0728751938.

The spelling of 12498939 in words is "twelve million, four hundred ninety-eight thousand, nine hundred thirty-nine".