12900938 has 8 divisors (see below), whose sum is σ = 19874532. Its totient is φ = 6276096.

The previous prime is 12900931. The next prime is 12900941. The reversal of 12900938 is 83900921.

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 2122849 = 3283^2 + 1457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12900931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87095 + ... + 87242.

Almost surely, 2^12900938 is an apocalyptic number.

12900938 is a deficient number, since it is larger than the sum of its proper divisors (6973594).

12900938 is a wasteful number, since it uses less digits than its factorization.

12900938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174376.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 12900938 is about 3591.7875772378. The cubic root of 12900938 is about 234.5346941998.

The spelling of 12900938 in words is "twelve million, nine hundred thousand, nine hundred thirty-eight".