122393879 has 4 divisors (see below), whose sum is σ = 127715376. Its totient is φ = 117072384.

The previous prime is 122393861. The next prime is 122393893. The reversal of 122393879 is 978393221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122393879 - 2¹⁶ = 122328343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122393819) 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, 2660714 + ... + 2660759.

It is an arithmetic number, because the mean of its divisors is an integer number (31928844).

Almost surely, 2^122393879 is an apocalyptic number.

122393879 is a deficient number, since it is larger than the sum of its proper divisors (5321497).

122393879 is an equidigital number, since it uses as much as digits as its factorization.

122393879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321496.

The product of its digits is 163296, while the sum is 44.

The square root of 122393879 is about 11063.1767137654. The cubic root of 122393879 is about 496.5007394821.

The spelling of 122393879 in words is "one hundred twenty-two million, three hundred ninety-three thousand, eight hundred seventy-nine".