85640758 has 8 divisors (see below), whose sum is σ = 146812752. Its totient is φ = 36703176.

The previous prime is 85640749. The next prime is 85640783. The reversal of 85640758 is 85704658.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3058585 + ... + 3058612.

It is an arithmetic number, because the mean of its divisors is an integer number (18351594).

Almost surely, 2^85640758 is an apocalyptic number.

85640758 is a deficient number, since it is larger than the sum of its proper divisors (61171994).

85640758 is a wasteful number, since it uses less digits than its factorization.

85640758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117206.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 85640758 is about 9254.2291953463. The cubic root of 85640758 is about 440.7850276205.

It can be divided in two parts, 856 and 40758, that added together give a palindrome (41614).

The spelling of 85640758 in words is "eighty-five million, six hundred forty thousand, seven hundred fifty-eight".