827663 has 4 divisors (see below), whose sum is σ = 830208. Its totient is φ = 825120.

The previous prime is 827639. The next prime is 827677. The reversal of 827663 is 366728.

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 827663 - 2⁶ = 827599 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827633) 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, 698 + ... + 1463.

It is an arithmetic number, because the mean of its divisors is an integer number (207552).

2⁸²⁷⁶⁶³ is an apocalyptic number.

827663 is a deficient number, since it is larger than the sum of its proper divisors (2545).

827663 is a wasteful number, since it uses less digits than its factorization.

827663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544.

The product of its digits is 12096, while the sum is 32.

The square root of 827663 is about 909.7598584242. The cubic root of 827663 is about 93.8896774219.

The spelling of 827663 in words is "eight hundred twenty-seven thousand, six hundred sixty-three".