784423123 has 16 divisors (see below), whose sum is σ = 878314752. Its totient is φ = 694540000.

The previous prime is 784423097. The next prime is 784423139. The reversal of 784423123 is 321324487.

784423123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 784423123 - 2²⁵ = 750868691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (784423183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58773 + ... + 70873.

It is an arithmetic number, because the mean of its divisors is an integer number (54894672).

Almost surely, 2^784423123 is an apocalyptic number.

784423123 is a deficient number, since it is larger than the sum of its proper divisors (93891629).

784423123 is a wasteful number, since it uses less digits than its factorization.

784423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12266.

The product of its digits is 32256, while the sum is 34.

The square root of 784423123 is about 28007.5547486745. The cubic root of 784423123 is about 922.2531113706.

The spelling of 784423123 in words is "seven hundred eighty-four million, four hundred twenty-three thousand, one hundred twenty-three".