857999954 has 8 divisors (see below), whose sum is σ = 1470857088. Its totient is φ = 367714260.

The previous prime is 857999939. The next prime is 857999977. The reversal of 857999954 is 459999758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30642842 + ... + 30642869.

It is an arithmetic number, because the mean of its divisors is an integer number (183857136).

Almost surely, 2^857999954 is an apocalyptic number.

857999954 is a deficient number, since it is larger than the sum of its proper divisors (612857134).

857999954 is a wasteful number, since it uses less digits than its factorization.

857999954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61285720.

The product of its digits is 36741600, while the sum is 65.

The square root of 857999954 is about 29291.6362465466. The cubic root of 857999954 is about 950.2307672078.

The spelling of 857999954 in words is "eight hundred fifty-seven million, nine hundred ninety-nine thousand, nine hundred fifty-four".