85612005 has 32 divisors (see below), whose sum is σ = 160214400. Its totient is φ = 43255296.

The previous prime is 85611971. The next prime is 85612019. The reversal of 85612005 is 50021658.

It is not a de Polignac number, because 85612005 - 2¹⁰ = 85610981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 85612005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14124 + ... + 19253.

It is an arithmetic number, because the mean of its divisors is an integer number (5006700).

Almost surely, 2^85612005 is an apocalyptic number.

It is an amenable number.

85612005 is a deficient number, since it is larger than the sum of its proper divisors (74602395).

85612005 is a wasteful number, since it uses less digits than its factorization.

85612005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33410 (or 33404 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 85612005 is about 9252.6755589937. The cubic root of 85612005 is about 440.7356924253.

The spelling of 85612005 in words is "eighty-five million, six hundred twelve thousand, five".