790123 has 4 divisors (see below), whose sum is σ = 798048. Its totient is φ = 782200.

The previous prime is 790121. The next prime is 790169. The reversal of 790123 is 321097.

790123 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.

It is a cyclic number.

It is not a de Polignac number, because 790123 - 2¹ = 790121 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 790094 and 790103.

It is not an unprimeable number, because it can be changed into a prime (790121) 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, 3811 + ... + 4012.

It is an arithmetic number, because the mean of its divisors is an integer number (199512).

2⁷⁹⁰¹²³ is an apocalyptic number.

790123 is a deficient number, since it is larger than the sum of its proper divisors (7925).

790123 is a wasteful number, since it uses less digits than its factorization.

790123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 790123 is about 888.8886319444. Note that the first 3 decimals coincide. The cubic root of 790123 is about 92.4481520979.

The spelling of 790123 in words is "seven hundred ninety thousand, one hundred twenty-three".