85092990 has 32 divisors (see below), whose sum is σ = 216237600. Its totient is φ = 21356544.

The previous prime is 85092979. The next prime is 85093027. The reversal of 85092990 is 9929058.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82915 + ... + 83934.

It is an arithmetic number, because the mean of its divisors is an integer number (6757425).

Almost surely, 2^85092990 is an apocalyptic number.

85092990 is an abundant number, since it is smaller than the sum of its proper divisors (131144610).

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

85092990 is a wasteful number, since it uses less digits than its factorization.

85092990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166876.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 85092990 is about 9224.5861695796. The cubic root of 85092990 is about 439.8432465036.

The spelling of 85092990 in words is "eighty-five million, ninety-two thousand, nine hundred ninety".