85677071 has 4 divisors (see below), whose sum is σ = 85704432. Its totient is φ = 85649712.

The previous prime is 85677043. The next prime is 85677083. The reversal of 85677071 is 17077658.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85677071 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 (85677041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8270 + ... + 15483.

It is an arithmetic number, because the mean of its divisors is an integer number (21426108).

Almost surely, 2^85677071 is an apocalyptic number.

85677071 is a deficient number, since it is larger than the sum of its proper divisors (27361).

85677071 is a wasteful number, since it uses less digits than its factorization.

85677071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27360.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 85677071 is about 9256.1909552472. The cubic root of 85677071 is about 440.8473186967.

The spelling of 85677071 in words is "eighty-five million, six hundred seventy-seven thousand, seventy-one".