785123 has 2 divisors, whose sum is σ = 785124. Its totient is φ = 785122.

The previous prime is 785119. The next prime is 785129. The reversal of 785123 is 321587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 785123 - 2² = 785119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 785092 and 785101.

It is not a weakly prime, because it can be changed into another prime (785129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392561 + 392562.

It is an arithmetic number, because the mean of its divisors is an integer number (392562).

2⁷⁸⁵¹²³ is an apocalyptic number.

785123 is a deficient number, since it is larger than the sum of its proper divisors (1).

785123 is an equidigital number, since it uses as much as digits as its factorization.

785123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 785123 is about 886.0716675303. The cubic root of 785123 is about 92.2527313669.

The spelling of 785123 in words is "seven hundred eighty-five thousand, one hundred twenty-three".