85597902 has 48 divisors (see below), whose sum is σ = 202504848. Its totient is φ = 25971840.

The previous prime is 85597871. The next prime is 85597921. The reversal of 85597902 is 20979558.

It is a happy number.

85597902 is a `hidden beast` number, since 8 + 559 + 7 + 90 + 2 = 666.

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, 14577 + ... + 19587.

It is an arithmetic number, because the mean of its divisors is an integer number (4218851).

Almost surely, 2^85597902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85597902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101252424).

85597902 is an abundant number, since it is smaller than the sum of its proper divisors (116906946).

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

85597902 is a wasteful number, since it uses less digits than its factorization.

85597902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 5102 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 85597902 is about 9251.9134237194. The cubic root of 85597902 is about 440.7114900687.

It can be divided in two parts, 8559 and 7902, that added together give a palindrome (16461).

The spelling of 85597902 in words is "eighty-five million, five hundred ninety-seven thousand, nine hundred two".