85340920 has 32 divisors (see below), whose sum is σ = 219448800. Its totient is φ = 29259648.

The previous prime is 85340909. The next prime is 85340921. The reversal of 85340920 is 2904358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85340921) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 152115 + ... + 152674.

It is an arithmetic number, because the mean of its divisors is an integer number (6857775).

Almost surely, 2^85340920 is an apocalyptic number.

It is an amenable number.

85340920 is an abundant number, since it is smaller than the sum of its proper divisors (134107880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85340920 is a wasteful number, since it uses less digits than its factorization.

85340920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304807 (or 304803 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 85340920 is about 9238.0149382863. The cubic root of 85340920 is about 440.2700133313.

The spelling of 85340920 in words is "eighty-five million, three hundred forty thousand, nine hundred twenty".