85291086 has 16 divisors (see below), whose sum is σ = 172742400. Its totient is φ = 28070328.

The previous prime is 85291081. The next prime is 85291097. The reversal of 85291086 is 68019258.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85291081) 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, 89496 + ... + 90443.

It is an arithmetic number, because the mean of its divisors is an integer number (10796400).

Almost surely, 2^85291086 is an apocalyptic number.

85291086 is an abundant number, since it is smaller than the sum of its proper divisors (87451314).

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

85291086 is a wasteful number, since it uses less digits than its factorization.

85291086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180023.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 85291086 is about 9235.3173199409. The cubic root of 85291086 is about 440.1842995148.

The spelling of 85291086 in words is "eighty-five million, two hundred ninety-one thousand, eighty-six".