85809235 has 8 divisors (see below), whose sum is σ = 103242240. Its totient is φ = 68466624.

The previous prime is 85809203. The next prime is 85809259. The reversal of 85809235 is 53290858.

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

It is a cyclic number.

It is not a de Polignac number, because 85809235 - 2⁵ = 85809203 is a prime.

It is a super-2 number, since 2×85809235² = 14726449622570450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20490 + ... + 24319.

It is an arithmetic number, because the mean of its divisors is an integer number (12905280).

Almost surely, 2^85809235 is an apocalyptic number.

85809235 is a deficient number, since it is larger than the sum of its proper divisors (17433005).

85809235 is a wasteful number, since it uses less digits than its factorization.

85809235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45197.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 85809235 is about 9263.3274259307. The cubic root of 85809235 is about 441.0738834430.

The spelling of 85809235 in words is "eighty-five million, eight hundred nine thousand, two hundred thirty-five".