85219960 has 32 divisors (see below), whose sum is σ = 219137760. Its totient is φ = 29218176.

The previous prime is 85219949. The next prime is 85219987. The reversal of 85219960 is 6991258.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151899 + ... + 152458.

It is an arithmetic number, because the mean of its divisors is an integer number (6848055).

Almost surely, 2^85219960 is an apocalyptic number.

It is an amenable number.

85219960 is an abundant number, since it is smaller than the sum of its proper divisors (133917800).

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

85219960 is a wasteful number, since it uses less digits than its factorization.

85219960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304375 (or 304371 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 85219960 is about 9231.4657557725. The cubic root of 85219960 is about 440.0619058903.

It can be divided in two parts, 8521 and 9960, that added together give a palindrome (18481).

The spelling of 85219960 in words is "eighty-five million, two hundred nineteen thousand, nine hundred sixty".