857319495 has 16 divisors (see below), whose sum is σ = 1373684832. Its totient is φ = 456579200.

The previous prime is 857319487. The next prime is 857319497. The reversal of 857319495 is 594913758.

It is not a de Polignac number, because 857319495 - 2³ = 857319487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857319497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30252 + ... + 51281.

It is an arithmetic number, because the mean of its divisors is an integer number (85855302).

Almost surely, 2^857319495 is an apocalyptic number.

857319495 is a deficient number, since it is larger than the sum of its proper divisors (516365337).

857319495 is a wasteful number, since it uses less digits than its factorization.

857319495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82242.

The product of its digits is 1360800, while the sum is 51.

The square root of 857319495 is about 29280.0186987645. The cubic root of 857319495 is about 949.9794990959.

The spelling of 857319495 in words is "eight hundred fifty-seven million, three hundred nineteen thousand, four hundred ninety-five".