85441720 has 64 divisors (see below), whose sum is σ = 236617920. Its totient is φ = 27039744.

The previous prime is 85441687. The next prime is 85441751. The reversal of 85441720 is 2714458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8097 + ... + 15376.

It is an arithmetic number, because the mean of its divisors is an integer number (3697155).

Almost surely, 2^85441720 is an apocalyptic number.

It is an amenable number.

85441720 is an abundant number, since it is smaller than the sum of its proper divisors (151176200).

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

85441720 is a wasteful number, since it uses less digits than its factorization.

85441720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23504 (or 23500 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 85441720 is about 9243.4690457641. The cubic root of 85441720 is about 440.4432860358.

The spelling of 85441720 in words is "eighty-five million, four hundred forty-one thousand, seven hundred twenty".