85783790 has 16 divisors (see below), whose sum is σ = 161124768. Its totient is φ = 32821536.

The previous prime is 85783777. The next prime is 85783799. The reversal of 85783790 is 9738758.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85783799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186257 + ... + 186716.

It is an arithmetic number, because the mean of its divisors is an integer number (10070298).

Almost surely, 2^85783790 is an apocalyptic number.

85783790 is a deficient number, since it is larger than the sum of its proper divisors (75340978).

85783790 is a wasteful number, since it uses less digits than its factorization.

85783790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373003.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 85783790 is about 9261.9538975316. The cubic root of 85783790 is about 441.0302819415.

The spelling of 85783790 in words is "eighty-five million, seven hundred eighty-three thousand, seven hundred ninety".