85913280 has 168 divisors, whose sum is σ = 308591712. Its totient is φ = 21897216.

The previous prime is 85913273. The next prime is 85913281. The reversal of 85913280 is 8231958.

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

It is not an unprimeable number, because it can be changed into a prime (85913281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65592 + ... + 66888.

Almost surely, 2^85913280 is an apocalyptic number.

85913280 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 85913280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154295856).

85913280 is an abundant number, since it is smaller than the sum of its proper divisors (222678432).

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

85913280 is a wasteful number, since it uses less digits than its factorization.

85913280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 85913280 is about 9268.9416871615. The cubic root of 85913280 is about 441.2520810330.

The spelling of 85913280 in words is "eighty-five million, nine hundred thirteen thousand, two hundred eighty".