859949023 has 2 divisors, whose sum is σ = 859949024. Its totient is φ = 859949022.

The previous prime is 859949017. The next prime is 859949081. The reversal of 859949023 is 320949958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 859949023 - 2⁹ = 859948511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (859940023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429974511 + 429974512.

It is an arithmetic number, because the mean of its divisors is an integer number (429974512).

Almost surely, 2^859949023 is an apocalyptic number.

859949023 is a deficient number, since it is larger than the sum of its proper divisors (1).

859949023 is an equidigital number, since it uses as much as digits as its factorization.

859949023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 859949023 is about 29324.8874337140. The cubic root of 859949023 is about 950.9497511968.

The spelling of 859949023 in words is "eight hundred fifty-nine million, nine hundred forty-nine thousand, twenty-three".