85804655 has 4 divisors (see below), whose sum is σ = 102965592. Its totient is φ = 68643720.

The previous prime is 85804643. The next prime is 85804699. The reversal of 85804655 is 55640858.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85804655 - 2²⁰ = 84756079 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 8580461 + ... + 8580470.

It is an arithmetic number, because the mean of its divisors is an integer number (25741398).

Almost surely, 2^85804655 is an apocalyptic number.

85804655 is a deficient number, since it is larger than the sum of its proper divisors (17160937).

85804655 is a wasteful number, since it uses less digits than its factorization.

85804655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17160936.

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 85804655 is about 9263.0802112472. The cubic root of 85804655 is about 441.0660359803.

The spelling of 85804655 in words is "eighty-five million, eight hundred four thousand, six hundred fifty-five".