878078233 has 2 divisors, whose sum is σ = 878078234. Its totient is φ = 878078232.

The previous prime is 878078231. The next prime is 878078249. The reversal of 878078233 is 332870878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588159504 + 289918729 = 24252^2 + 17027^2 .

It is a cyclic number.

It is not a de Polignac number, because 878078233 - 2¹ = 878078231 is a prime.

It is a super-3 number, since 3×878078233³ (a number of 28 digits) contains 333 as substring.

Together with 878078231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (878078231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439039116 + 439039117.

It is an arithmetic number, because the mean of its divisors is an integer number (439039117).

Almost surely, 2^878078233 is an apocalyptic number.

It is an amenable number.

878078233 is a deficient number, since it is larger than the sum of its proper divisors (1).

878078233 is an equidigital number, since it uses as much as digits as its factorization.

878078233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 878078233 is about 29632.3848685859. The cubic root of 878078233 is about 957.5858878070.

The spelling of 878078233 in words is "eight hundred seventy-eight million, seventy-eight thousand, two hundred thirty-three".