85990910 has 32 divisors (see below), whose sum is σ = 159563520. Its totient is φ = 33349888.

The previous prime is 85990909. The next prime is 85990921. The reversal of 85990910 is 1909958.

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, 46259 + ... + 48081.

It is an arithmetic number, because the mean of its divisors is an integer number (4986360).

Almost surely, 2^85990910 is an apocalyptic number.

85990910 is a deficient number, since it is larger than the sum of its proper divisors (73572610).

85990910 is a wasteful number, since it uses less digits than its factorization.

85990910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 85990910 is about 9273.1283825902. The cubic root of 85990910 is about 441.3849440276.

The spelling of 85990910 in words is "eighty-five million, nine hundred ninety thousand, nine hundred ten".