85322409 has 8 divisors (see below), whose sum is σ = 113932512. Its totient is φ = 56796960.

The previous prime is 85322401. The next prime is 85322411. The reversal of 85322409 is 90422358.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85322409 - 2³ = 85322401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85322409.

It is not an unprimeable number, because it can be changed into a prime (85322401) 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, 18772 + ... + 22869.

It is an arithmetic number, because the mean of its divisors is an integer number (14241564).

Almost surely, 2^85322409 is an apocalyptic number.

It is an amenable number.

85322409 is a deficient number, since it is larger than the sum of its proper divisors (28610103).

85322409 is a wasteful number, since it uses less digits than its factorization.

85322409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42327.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 85322409 is about 9237.0129912218. The cubic root of 85322409 is about 440.2381785540.

The spelling of 85322409 in words is "eighty-five million, three hundred twenty-two thousand, four hundred nine".