85786340 has 12 divisors (see below), whose sum is σ = 180151356. Its totient is φ = 34314528.

The previous prime is 85786319. The next prime is 85786357. The reversal of 85786340 is 4368758.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37650496 + 48135844 = 6136^2 + 6938^2 .

It is a super-2 number, since 2×85786340² = 14718592261191200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144639 + ... + 2144678.

It is an arithmetic number, because the mean of its divisors is an integer number (15012613).

Almost surely, 2^85786340 is an apocalyptic number.

It is an amenable number.

85786340 is an abundant number, since it is smaller than the sum of its proper divisors (94365016).

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

85786340 is a wasteful number, since it uses less digits than its factorization.

85786340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289326 (or 4289324 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 85786340 is about 9262.0915564466. The cubic root of 85786340 is about 441.0346519049.

The spelling of 85786340 in words is "eighty-five million, seven hundred eighty-six thousand, three hundred forty".