85715760 has 160 divisors (see below), whose sum is σ = 290481408. Its totient is φ = 20782080.

The previous prime is 85715759. The next prime is 85715767. The reversal of 85715760 is 6751758.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (85715767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258795 + ... + 259125.

Almost surely, 2^85715760 is an apocalyptic number.

85715760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85715760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145240704).

85715760 is an abundant number, since it is smaller than the sum of its proper divisors (204765648).

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

85715760 is a wasteful number, since it uses less digits than its factorization.

85715760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The square root of 85715760 is about 9258.2806179117. The cubic root of 85715760 is about 440.9136661844.

The spelling of 85715760 in words is "eighty-five million, seven hundred fifteen thousand, seven hundred sixty".