85811796 has 72 divisors (see below), whose sum is σ = 249150720. Its totient is φ = 24394176.

The previous prime is 85811777. The next prime is 85811849. The reversal of 85811796 is 69711858.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (120960) is a multiple of the sum of its prime divisors (1728).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56965 + ... + 58451.

Almost surely, 2^85811796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85811796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124575360).

85811796 is an abundant number, since it is smaller than the sum of its proper divisors (163338924).

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

85811796 is a wasteful number, since it uses less digits than its factorization.

85811796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733 (or 1728 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 85811796 is about 9263.4656581649. The cubic root of 85811796 is about 441.0782713895.

The spelling of 85811796 in words is "eighty-five million, eight hundred eleven thousand, seven hundred ninety-six".