857873007 has 12 divisors (see below), whose sum is σ = 1239466384. Its totient is φ = 571769280.

The previous prime is 857872987. The next prime is 857873059. The reversal of 857873007 is 700378758.

857873007 is a `hidden beast` number, since 8 + 578 + 73 + 0 + 0 + 7 = 666.

857873007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 857873007 - 2⁷ = 857872879 is a prime.

It is a super-2 number, since 2×857873007² = 1471892192278444098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857873407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34407 + ... + 53847.

Almost surely, 2^857873007 is an apocalyptic number.

857873007 is a deficient number, since it is larger than the sum of its proper divisors (381593377).

857873007 is a wasteful number, since it uses less digits than its factorization.

857873007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24350 (or 24347 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 857873007 is about 29289.4692167680. The cubic root of 857873007 is about 950.1839005018.

The spelling of 857873007 in words is "eight hundred fifty-seven million, eight hundred seventy-three thousand, seven".