852857923 has 2 divisors, whose sum is σ = 852857924. Its totient is φ = 852857922.

The previous prime is 852857903. The next prime is 852857947. The reversal of 852857923 is 329758258.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 852857923 - 2²⁹ = 315987011 is a prime.

It is not a weakly prime, because it can be changed into another prime (852857903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426428961 + 426428962.

It is an arithmetic number, because the mean of its divisors is an integer number (426428962).

Almost surely, 2^852857923 is an apocalyptic number.

852857923 is a deficient number, since it is larger than the sum of its proper divisors (1).

852857923 is an equidigital number, since it uses as much as digits as its factorization.

852857923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 49.

The square root of 852857923 is about 29203.7313198160. The cubic root of 852857923 is about 948.3287043269.

The spelling of 852857923 in words is "eight hundred fifty-two million, eight hundred fifty-seven thousand, nine hundred twenty-three".