222979937 has 4 divisors (see below), whose sum is σ = 223034160. Its totient is φ = 222925716.

The previous prime is 222979909. The next prime is 222979943. The reversal of 222979937 is 739979222.

It is a happy number.

222979937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222979937 - 2¹⁰ = 222978913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222979907) 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, 20387 + ... + 29352.

It is an arithmetic number, because the mean of its divisors is an integer number (55758540).

Almost surely, 2^222979937 is an apocalyptic number.

It is an amenable number.

222979937 is a deficient number, since it is larger than the sum of its proper divisors (54223).

222979937 is an equidigital number, since it uses as much as digits as its factorization.

222979937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54222.

The product of its digits is 857304, while the sum is 50.

The square root of 222979937 is about 14932.5127490319. The cubic root of 222979937 is about 606.3945128694.

The spelling of 222979937 in words is "two hundred twenty-two million, nine hundred seventy-nine thousand, nine hundred thirty-seven".