123328879 has 4 divisors (see below), whose sum is σ = 123623640. Its totient is φ = 123034120.

The previous prime is 123328871. The next prime is 123328883. The reversal of 123328879 is 978823321.

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 123328879 - 2³ = 123328871 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 (123328871) 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, 146752 + ... + 147589.

It is an arithmetic number, because the mean of its divisors is an integer number (30905910).

Almost surely, 2^123328879 is an apocalyptic number.

123328879 is a deficient number, since it is larger than the sum of its proper divisors (294761).

123328879 is an equidigital number, since it uses as much as digits as its factorization.

123328879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294760.

The product of its digits is 145152, while the sum is 43.

The square root of 123328879 is about 11105.3536188633. The cubic root of 123328879 is about 497.7618348493.

The spelling of 123328879 in words is "one hundred twenty-three million, three hundred twenty-eight thousand, eight hundred seventy-nine".