85297800 has 192 divisors, whose sum is σ = 315694080. Its totient is φ = 18627840.

The previous prime is 85297781. The next prime is 85297811. The reversal of 85297800 is 879258.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96159 + ... + 97041.

It is an arithmetic number, because the mean of its divisors is an integer number (1644240).

Almost surely, 2^85297800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85297800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157847040).

85297800 is an abundant number, since it is smaller than the sum of its proper divisors (230396280).

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

85297800 is a wasteful number, since it uses less digits than its factorization.

85297800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 85297800 is about 9235.6808086897. The cubic root of 85297800 is about 440.1958494512.

The spelling of 85297800 in words is "eighty-five million, two hundred ninety-seven thousand, eight hundred".