85393857 has 8 divisors (see below), whose sum is σ = 116635680. Its totient is φ = 55540640.

The previous prime is 85393823. The next prime is 85393859. The reversal of 85393857 is 75839358.

It is a happy number.

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 85393857 - 2⁶ = 85393793 is a prime.

It is a super-2 number, since 2×85393857² = 14584221626672898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85393859) 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, 347007 + ... + 347252.

It is an arithmetic number, because the mean of its divisors is an integer number (14579460).

Almost surely, 2^85393857 is an apocalyptic number.

It is an amenable number.

85393857 is a deficient number, since it is larger than the sum of its proper divisors (31241823).

85393857 is a wasteful number, since it uses less digits than its factorization.

85393857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694303.

The product of its digits is 907200, while the sum is 48.

The square root of 85393857 is about 9240.8796659193. The cubic root of 85393857 is about 440.3610277252.

The spelling of 85393857 in words is "eighty-five million, three hundred ninety-three thousand, eight hundred fifty-seven".