85277805 has 16 divisors (see below), whose sum is σ = 136933440. Its totient is φ = 45318528.

The previous prime is 85277791. The next prime is 85277821. The reversal of 85277805 is 50877258.

It is a happy number.

It is not a de Polignac number, because 85277805 - 2⁷ = 85277677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5800 + ... + 14289.

It is an arithmetic number, because the mean of its divisors is an integer number (8558340).

Almost surely, 2^85277805 is an apocalyptic number.

It is an amenable number.

85277805 is a deficient number, since it is larger than the sum of its proper divisors (51655635).

85277805 is a wasteful number, since it uses less digits than its factorization.

85277805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20380.

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 85277805 is about 9234.5982587225. The cubic root of 85277805 is about 440.1614507373.

The spelling of 85277805 in words is "eighty-five million, two hundred seventy-seven thousand, eight hundred five".