85130857 has 8 divisors (see below), whose sum is σ = 97626816. Its totient is φ = 72718512.

The previous prime is 85130833. The next prime is 85130861. The reversal of 85130857 is 75803158.

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

It is a cyclic number.

It is not a de Polignac number, because 85130857 - 2⁷ = 85130729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85130827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18703 + ... + 22804.

It is an arithmetic number, because the mean of its divisors is an integer number (12203352).

Almost surely, 2^85130857 is an apocalyptic number.

It is an amenable number.

85130857 is a deficient number, since it is larger than the sum of its proper divisors (12495959).

85130857 is a wasteful number, since it uses less digits than its factorization.

85130857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41807.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 85130857 is about 9226.6384452844. The cubic root of 85130857 is about 439.9084813101.

The spelling of 85130857 in words is "eighty-five million, one hundred thirty thousand, eight hundred fifty-seven".