7904123 has 2 divisors, whose sum is σ = 7904124. Its totient is φ = 7904122.

The previous prime is 7904119. The next prime is 7904161. The reversal of 7904123 is 3214097.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7904123 - 2² = 7904119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7904092 and 7904101.

It is not a weakly prime, because it can be changed into another prime (7904423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3952061 + 3952062.

It is an arithmetic number, because the mean of its divisors is an integer number (3952062).

Almost surely, 2^7904123 is an apocalyptic number.

7904123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7904123 is an equidigital number, since it uses as much as digits as its factorization.

7904123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 7904123 is about 2811.4272176245. The cubic root of 7904123 is about 199.1978117720.

Subtracting from 7904123 its sum of digits (26), we obtain a palindrome (7904097).

It can be divided in two parts, 790 and 4123, that added together give a cube (4913 = 17³).

The spelling of 7904123 in words is "seven million, nine hundred four thousand, one hundred twenty-three".