85287276 has 96 divisors (see below), whose sum is σ = 235872000. Its totient is φ = 26573184.

The previous prime is 85287263. The next prime is 85287277. The reversal of 85287276 is 67278258.

Its product of digits (376320) is a multiple of the sum of its prime factors (588).

It is not an unprimeable number, because it can be changed into a prime (85287277) 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, 182395 + ... + 182861.

It is an arithmetic number, because the mean of its divisors is an integer number (2457000).

Almost surely, 2^85287276 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 85287276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117936000).

85287276 is an abundant number, since it is smaller than the sum of its proper divisors (150584724).

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

85287276 is a wasteful number, since it uses less digits than its factorization.

85287276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 580 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 85287276 is about 9235.1110442701. Note that the first 3 decimals coincide. The cubic root of 85287276 is about 440.1777449918.

The spelling of 85287276 in words is "eighty-five million, two hundred eighty-seven thousand, two hundred seventy-six".