85815360 has 168 divisors, whose sum is σ = 299557440. Its totient is φ = 22545408.

The previous prime is 85815341. The next prime is 85815383. The reversal of 85815360 is 6351858.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238861 + ... + 239219.

It is an arithmetic number, because the mean of its divisors is an integer number (1783080).

Almost surely, 2^85815360 is an apocalyptic number.

85815360 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 85815360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149778720).

85815360 is an abundant number, since it is smaller than the sum of its proper divisors (213742080).

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

85815360 is a wasteful number, since it uses less digits than its factorization.

85815360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 85815360 is about 9263.6580247762. The cubic root of 85815360 is about 441.0843777030.

The spelling of 85815360 in words is "eighty-five million, eight hundred fifteen thousand, three hundred sixty".