85415679 has 6 divisors (see below), whose sum is σ = 123378216. Its totient is φ = 56943780.

The previous prime is 85415651. The next prime is 85415699. The reversal of 85415679 is 97651458.

85415679 is a `hidden beast` number, since 85 + 4 + 1 + 567 + 9 = 666.

It is not a de Polignac number, because 85415679 - 2¹⁵ = 85382911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85415699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4745307 + ... + 4745324.

It is an arithmetic number, because the mean of its divisors is an integer number (20563036).

Almost surely, 2^85415679 is an apocalyptic number.

85415679 is a deficient number, since it is larger than the sum of its proper divisors (37962537).

85415679 is a wasteful number, since it uses less digits than its factorization.

85415679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490637 (or 9490634 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 85415679 is about 9242.0603222442. The cubic root of 85415679 is about 440.3985352628.

The spelling of 85415679 in words is "eighty-five million, four hundred fifteen thousand, six hundred seventy-nine".