85686763 has 4 divisors (see below), whose sum is σ = 86165640. Its totient is φ = 85207888.

The previous prime is 85686737. The next prime is 85686767. The reversal of 85686763 is 36768658.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36768658 = 2 ⋅18384329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85686763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85686767) 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, 239170 + ... + 239527.

It is an arithmetic number, because the mean of its divisors is an integer number (21541410).

Almost surely, 2^85686763 is an apocalyptic number.

85686763 is a deficient number, since it is larger than the sum of its proper divisors (478877).

85686763 is a wasteful number, since it uses less digits than its factorization.

85686763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478876.

The product of its digits is 1451520, while the sum is 49.

The square root of 85686763 is about 9256.7144819315. The cubic root of 85686763 is about 440.8639413125.

The spelling of 85686763 in words is "eighty-five million, six hundred eighty-six thousand, seven hundred sixty-three".