12999938 has 16 divisors (see below), whose sum is σ = 22331904. Its totient is φ = 5559840.

The previous prime is 12999937. The next prime is 12999941. The reversal of 12999938 is 83999921.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12999937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12623 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (1395744).

Almost surely, 2^12999938 is an apocalyptic number.

12999938 is a deficient number, since it is larger than the sum of its proper divisors (9331966).

12999938 is an equidigital number, since it uses as much as digits as its factorization.

12999938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its digits is 314928, while the sum is 50.

The square root of 12999938 is about 3605.5426776007. The cubic root of 12999938 is about 235.1330949696.

The spelling of 12999938 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred thirty-eight".