85812663 has 4 divisors (see below), whose sum is σ = 114416888. Its totient is φ = 57208440.

The previous prime is 85812637. The next prime is 85812667. The reversal of 85812663 is 36621858.

It is a happy number.

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

It is not a de Polignac number, because 85812663 - 2⁶ = 85812599 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 (85812667) 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, 14302108 + ... + 14302113.

It is an arithmetic number, because the mean of its divisors is an integer number (28604222).

Almost surely, 2^85812663 is an apocalyptic number.

85812663 is a deficient number, since it is larger than the sum of its proper divisors (28604225).

85812663 is a wasteful number, since it uses less digits than its factorization.

85812663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28604224.

The product of its digits is 69120, while the sum is 39.

The square root of 85812663 is about 9263.5124547873. The cubic root of 85812663 is about 441.0797568634.

The spelling of 85812663 in words is "eighty-five million, eight hundred twelve thousand, six hundred sixty-three".