85651867 has 16 divisors (see below), whose sum is σ = 103530240. Its totient is φ = 69221088.

The previous prime is 85651837. The next prime is 85651921. The reversal of 85651867 is 76815658.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85651867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85651807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28773 + ... + 31609.

It is an arithmetic number, because the mean of its divisors is an integer number (6470640).

Almost surely, 2^85651867 is an apocalyptic number.

85651867 is a deficient number, since it is larger than the sum of its proper divisors (17878373).

85651867 is a wasteful number, since it uses less digits than its factorization.

85651867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090.

The product of its digits is 403200, while the sum is 46.

The square root of 85651867 is about 9254.8293879466. The cubic root of 85651867 is about 440.8040857935.

The spelling of 85651867 in words is "eighty-five million, six hundred fifty-one thousand, eight hundred sixty-seven".