804907123 has 2 divisors, whose sum is σ = 804907124. Its totient is φ = 804907122.

The previous prime is 804907111. The next prime is 804907133. The reversal of 804907123 is 321709408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804907123 is a prime.

It is a super-2 number, since 2×804907123² = 1295750953312274258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (804907133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402453561 + 402453562.

It is an arithmetic number, because the mean of its divisors is an integer number (402453562).

Almost surely, 2^804907123 is an apocalyptic number.

804907123 is a deficient number, since it is larger than the sum of its proper divisors (1).

804907123 is an equidigital number, since it uses as much as digits as its factorization.

804907123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 804907123 is about 28370.8851289487. The cubic root of 804907123 is about 930.2119696430.

The spelling of 804907123 in words is "eight hundred four million, nine hundred seven thousand, one hundred twenty-three".