85120320 has 56 divisors (see below), whose sum is σ = 270260064. Its totient is φ = 22698496.

The previous prime is 85120297. The next prime is 85120339. The reversal of 85120320 is 2302158.

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, 43374 + ... + 45293.

Almost surely, 2^85120320 is an apocalyptic number.

85120320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85120320 is an abundant number, since it is smaller than the sum of its proper divisors (185139744).

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

85120320 is a wasteful number, since it uses less digits than its factorization.

85120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88687 (or 88677 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 85120320 is about 9226.0674179197. The cubic root of 85120320 is about 439.8903307941.

Adding to 85120320 its reverse (2302158), we get a palindrome (87422478).

The spelling of 85120320 in words is "eighty-five million, one hundred twenty thousand, three hundred twenty".