840823233 has 4 divisors (see below), whose sum is σ = 1121097648. Its totient is φ = 560548820.

The previous prime is 840823223. The next prime is 840823237. The reversal of 840823233 is 332328048.

840823233 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 840823233 - 2⁵ = 840823201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 840823194 and 840823203.

It is not an unprimeable number, because it can be changed into a prime (840823237) 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, 140137203 + ... + 140137208.

It is an arithmetic number, because the mean of its divisors is an integer number (280274412).

Almost surely, 2^840823233 is an apocalyptic number.

It is an amenable number.

840823233 is a deficient number, since it is larger than the sum of its proper divisors (280274415).

840823233 is a wasteful number, since it uses less digits than its factorization.

840823233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280274414.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 840823233 is about 28996.9521329398. The cubic root of 840823233 is about 943.8469304532.

The spelling of 840823233 in words is "eight hundred forty million, eight hundred twenty-three thousand, two hundred thirty-three".