12920938 has 8 divisors (see below), whose sum is σ = 19569888. Its totient is φ = 6397644.

The previous prime is 12920933. The next prime is 12920951. The reversal of 12920938 is 83902921.

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

It is not an unprimeable number, because it can be changed into a prime (12920933) 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, 31156 + ... + 31567.

It is an arithmetic number, because the mean of its divisors is an integer number (2446236).

Almost surely, 2^12920938 is an apocalyptic number.

12920938 is a deficient number, since it is larger than the sum of its proper divisors (6648950).

12920938 is a wasteful number, since it uses less digits than its factorization.

12920938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62828.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 12920938 is about 3594.5706280445. The cubic root of 12920938 is about 234.6558293714.

The spelling of 12920938 in words is "twelve million, nine hundred twenty thousand, nine hundred thirty-eight".