85380812 has 12 divisors (see below), whose sum is σ = 162999816. Its totient is φ = 38809440.

The previous prime is 85380791. The next prime is 85380821. The reversal of 85380812 is 21808358.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970193 + ... + 970280.

It is an arithmetic number, because the mean of its divisors is an integer number (13583318).

Almost surely, 2^85380812 is an apocalyptic number.

It is an amenable number.

85380812 is a deficient number, since it is larger than the sum of its proper divisors (77619004).

85380812 is a wasteful number, since it uses less digits than its factorization.

85380812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940488 (or 1940486 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 85380812 is about 9240.1738078891. The cubic root of 85380812 is about 440.3386029968.

The spelling of 85380812 in words is "eighty-five million, three hundred eighty thousand, eight hundred twelve".