85291488 has 48 divisors (see below), whose sum is σ = 248769360. Its totient is φ = 28430208.

The previous prime is 85291487. The next prime is 85291501. The reversal of 85291488 is 88419258.

It is a happy number.

85291488 is a `hidden beast` number, since 85 + 2 + 91 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85291483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48495 + ... + 50222.

It is an arithmetic number, because the mean of its divisors is an integer number (5182695).

Almost surely, 2^85291488 is an apocalyptic number.

It is an amenable number.

85291488 is an abundant number, since it is smaller than the sum of its proper divisors (163477872).

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

85291488 is a wasteful number, since it uses less digits than its factorization.

85291488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98736 (or 98722 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 85291488 is about 9235.3390841918. The cubic root of 85291488 is about 440.1849910830.

The spelling of 85291488 in words is "eighty-five million, two hundred ninety-one thousand, four hundred eighty-eight".