85804340 has 12 divisors (see below), whose sum is σ = 180189156. Its totient is φ = 34321728.

The previous prime is 85804337. The next prime is 85804343. The reversal of 85804340 is 4340858.

It is an interprime number because it is at equal distance from previous prime (85804337) and next prime (85804343).

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 41422096 = 6662^2 + 6436^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85804297 and 85804306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85804343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145089 + ... + 2145128.

It is an arithmetic number, because the mean of its divisors is an integer number (15015763).

Almost surely, 2^85804340 is an apocalyptic number.

It is an amenable number.

85804340 is an abundant number, since it is smaller than the sum of its proper divisors (94384816).

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

85804340 is a wasteful number, since it uses less digits than its factorization.

85804340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290226 (or 4290224 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 85804340 is about 9263.0632082481. The cubic root of 85804340 is about 441.0654962428.

The spelling of 85804340 in words is "eighty-five million, eight hundred four thousand, three hundred forty".