80808823 has 4 divisors (see below), whose sum is σ = 80826840. Its totient is φ = 80790808.

The previous prime is 80808799. The next prime is 80808829. The reversal of 80808823 is 32880808.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80808823 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 (80808829) 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, 3636 + ... + 13222.

It is an arithmetic number, because the mean of its divisors is an integer number (20206710).

Almost surely, 2^80808823 is an apocalyptic number.

80808823 is a deficient number, since it is larger than the sum of its proper divisors (18017).

80808823 is an equidigital number, since it uses as much as digits as its factorization.

80808823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18016.

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 80808823 is about 8989.3727812345. The cubic root of 80808823 is about 432.3342017664.

The spelling of 80808823 in words is "eighty million, eight hundred eight thousand, eight hundred twenty-three".