85726847 has 4 divisors (see below), whose sum is σ = 86690160. Its totient is φ = 84763536.

The previous prime is 85726843. The next prime is 85726877. The reversal of 85726847 is 74862758.

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 85726847 - 2² = 85726843 is a prime.

It is a super-2 number, since 2×85726847² = 14698184593122818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85726843) 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, 481523 + ... + 481700.

It is an arithmetic number, because the mean of its divisors is an integer number (21672540).

Almost surely, 2^85726847 is an apocalyptic number.

85726847 is a deficient number, since it is larger than the sum of its proper divisors (963313).

85726847 is an equidigital number, since it uses as much as digits as its factorization.

85726847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963312.

The product of its digits is 752640, while the sum is 47.

The square root of 85726847 is about 9258.8793598362. The cubic root of 85726847 is about 440.9326755205.

The spelling of 85726847 in words is "eighty-five million, seven hundred twenty-six thousand, eight hundred forty-seven".