859973945 has 16 divisors (see below), whose sum is σ = 1079864832. Its totient is φ = 656657280.

The previous prime is 859973929. The next prime is 859973987. The reversal of 859973945 is 549379958.

It is not a de Polignac number, because 859973945 - 2⁴ = 859973929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26687 + ... + 49316.

It is an arithmetic number, because the mean of its divisors is an integer number (67491552).

Almost surely, 2^859973945 is an apocalyptic number.

It is an amenable number.

859973945 is a deficient number, since it is larger than the sum of its proper divisors (219890887).

859973945 is a wasteful number, since it uses less digits than its factorization.

859973945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76112.

The product of its digits is 12247200, while the sum is 59.

The square root of 859973945 is about 29325.3123598028. The cubic root of 859973945 is about 950.9589375323.

The spelling of 859973945 in words is "eight hundred fifty-nine million, nine hundred seventy-three thousand, nine hundred forty-five".