878345233 has 2 divisors, whose sum is σ = 878345234. Its totient is φ = 878345232.

The previous prime is 878345231. The next prime is 878345267. The reversal of 878345233 is 332543878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869542144 + 8803089 = 29488^2 + 2967^2 .

It is a cyclic number.

It is not a de Polignac number, because 878345233 - 2¹ = 878345231 is a prime.

Together with 878345231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 878345233.

It is not a weakly prime, because it can be changed into another prime (878345231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439172616 + 439172617.

It is an arithmetic number, because the mean of its divisors is an integer number (439172617).

Almost surely, 2^878345233 is an apocalyptic number.

It is an amenable number.

878345233 is a deficient number, since it is larger than the sum of its proper divisors (1).

878345233 is an equidigital number, since it uses as much as digits as its factorization.

878345233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The square root of 878345233 is about 29636.8897322239. The cubic root of 878345233 is about 957.6829366849.

The spelling of 878345233 in words is "eight hundred seventy-eight million, three hundred forty-five thousand, two hundred thirty-three".