85704767 has 4 divisors (see below), whose sum is σ = 86178456. Its totient is φ = 85231080.

The previous prime is 85704761. The next prime is 85704779. The reversal of 85704767 is 76740758.

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

It is a cyclic number.

It is not a de Polignac number, because 85704767 - 2¹⁶ = 85639231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85704761) 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, 236573 + ... + 236934.

It is an arithmetic number, because the mean of its divisors is an integer number (21544614).

Almost surely, 2^85704767 is an apocalyptic number.

85704767 is a deficient number, since it is larger than the sum of its proper divisors (473689).

85704767 is a wasteful number, since it uses less digits than its factorization.

85704767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473688.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 85704767 is about 9257.6869141271. The cubic root of 85704767 is about 440.8948163986.

The spelling of 85704767 in words is "eighty-five million, seven hundred four thousand, seven hundred sixty-seven".