85630711 has 4 divisors (see below), whose sum is σ = 88393024. Its totient is φ = 82868400.

The previous prime is 85630703. The next prime is 85630781. The reversal of 85630711 is 11703658.

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 85630711 - 2³ = 85630703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2762281 = 85630711 / (8 + 5 + 6 + 3 + 0 + 7 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85630781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381110 + ... + 1381171.

It is an arithmetic number, because the mean of its divisors is an integer number (22098256).

Almost surely, 2^85630711 is an apocalyptic number.

85630711 is a deficient number, since it is larger than the sum of its proper divisors (2762313).

85630711 is a wasteful number, since it uses less digits than its factorization.

85630711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762312.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 85630711 is about 9253.6863465324. The cubic root of 85630711 is about 440.7677899544.

The spelling of 85630711 in words is "eighty-five million, six hundred thirty thousand, seven hundred eleven".