823870263 has 4 divisors (see below), whose sum is σ = 1098493688. Its totient is φ = 549246840.

The previous prime is 823870261. The next prime is 823870273. The reversal of 823870263 is 362078328.

It is a happy number.

823870263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 823870263 - 2¹ = 823870261 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 (823870261) 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, 137311708 + ... + 137311713.

It is an arithmetic number, because the mean of its divisors is an integer number (274623422).

Almost surely, 2^823870263 is an apocalyptic number.

823870263 is a deficient number, since it is larger than the sum of its proper divisors (274623425).

823870263 is a wasteful number, since it uses less digits than its factorization.

823870263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274623424.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 823870263 is about 28703.1402985806. The cubic root of 823870263 is about 937.4604240005.

The spelling of 823870263 in words is "eight hundred twenty-three million, eight hundred seventy thousand, two hundred sixty-three".