85281600 has 168 divisors, whose sum is σ = 284093920. Its totient is φ = 22394880.

The previous prime is 85281583. The next prime is 85281619. The reversal of 85281600 is 618258.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 523119 + ... + 523281.

Almost surely, 2^85281600 is an apocalyptic number.

85281600 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 85281600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142046960).

85281600 is an abundant number, since it is smaller than the sum of its proper divisors (198812320).

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

85281600 is a wasteful number, since it uses less digits than its factorization.

85281600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 85281600 is about 9234.8037337022. The cubic root of 85281600 is about 440.1679799388.

Adding to 85281600 its reverse (618258), we get a palindrome (85899858).

The spelling of 85281600 in words is "eighty-five million, two hundred eighty-one thousand, six hundred".