827811023 has 4 divisors (see below), whose sum is σ = 891488808. Its totient is φ = 764133240.

The previous prime is 827810989. The next prime is 827811043. The reversal of 827811023 is 320118728.

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

It is not a de Polignac number, because 827811023 - 2⁶ = 827810959 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 (827811043) 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, 31838873 + ... + 31838898.

It is an arithmetic number, because the mean of its divisors is an integer number (222872202).

Almost surely, 2^827811023 is an apocalyptic number.

827811023 is a deficient number, since it is larger than the sum of its proper divisors (63677785).

827811023 is a wasteful number, since it uses less digits than its factorization.

827811023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63677784.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 827811023 is about 28771.7052501238. The cubic root of 827811023 is about 938.9527430669.

The spelling of 827811023 in words is "eight hundred twenty-seven million, eight hundred eleven thousand, twenty-three".