85769790 has 32 divisors (see below), whose sum is σ = 206133120. Its totient is φ = 22840224.

The previous prime is 85769773. The next prime is 85769813. The reversal of 85769790 is 9796758.

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, 26901 + ... + 29919.

It is an arithmetic number, because the mean of its divisors is an integer number (6441660).

Almost surely, 2^85769790 is an apocalyptic number.

85769790 is an abundant number, since it is smaller than the sum of its proper divisors (120363330).

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

85769790 is a wasteful number, since it uses less digits than its factorization.

85769790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 85769790 is about 9261.1980866408. The cubic root of 85769790 is about 441.0062884424.

The spelling of 85769790 in words is "eighty-five million, seven hundred sixty-nine thousand, seven hundred ninety".