85750590 has 32 divisors (see below), whose sum is σ = 207806976. Its totient is φ = 22644000.

The previous prime is 85750583. The next prime is 85750597. The reversal of 85750590 is 9505758.

It is an interprime number because it is at equal distance from previous prime (85750583) and next prime (85750597).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85750597) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10786 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (6493968).

Almost surely, 2^85750590 is an apocalyptic number.

85750590 is an abundant number, since it is smaller than the sum of its proper divisors (122056386).

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

85750590 is a wasteful number, since it uses less digits than its factorization.

85750590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27864.

The product of its (nonzero) digits is 63000, while the sum is 39.

The square root of 85750590 is about 9260.1614456769. The cubic root of 85750590 is about 440.9733788261.

The spelling of 85750590 in words is "eighty-five million, seven hundred fifty thousand, five hundred ninety".