12213937 has 8 divisors (see below), whose sum is σ = 12563712. Its totient is φ = 11868000.

The previous prime is 12213931. The next prime is 12213947. The reversal of 12213937 is 73931221.

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

It is a cyclic number.

It is not a de Polignac number, because 12213937 - 2⁷ = 12213809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12213931) 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, 6237 + ... + 7957.

It is an arithmetic number, because the mean of its divisors is an integer number (1570464).

Almost surely, 2^12213937 is an apocalyptic number.

It is an amenable number.

12213937 is a deficient number, since it is larger than the sum of its proper divisors (349775).

12213937 is a wasteful number, since it uses less digits than its factorization.

12213937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919.

The product of its digits is 2268, while the sum is 28.

The square root of 12213937 is about 3494.8443456040. The cubic root of 12213937 is about 230.2953797874.

The spelling of 12213937 in words is "twelve million, two hundred thirteen thousand, nine hundred thirty-seven".