85259388 has 12 divisors (see below), whose sum is σ = 198938600. Its totient is φ = 28419792.

The previous prime is 85259387. The next prime is 85259389. The reversal of 85259388 is 88395258.

It is an interprime number because it is at equal distance from previous prime (85259387) and next prime (85259389).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85259387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3552463 + ... + 3552486.

Almost surely, 2^85259388 is an apocalyptic number.

It is an amenable number.

85259388 is an abundant number, since it is smaller than the sum of its proper divisors (113679212).

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

85259388 is a wasteful number, since it uses less digits than its factorization.

85259388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104956 (or 7104954 counting only the distinct ones).

The product of its digits is 691200, while the sum is 48.

The square root of 85259388 is about 9233.6010310171. The cubic root of 85259388 is about 440.1297620031.

The spelling of 85259388 in words is "eighty-five million, two hundred fifty-nine thousand, three hundred eighty-eight".