878395226 has 4 divisors (see below), whose sum is σ = 1317592842. Its totient is φ = 439197612.

The previous prime is 878395187. The next prime is 878395229. The reversal of 878395226 is 622593878.

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

It can be written as a sum of positive squares in only one way, i.e., 440958001 + 437437225 = 20999^2 + 20915^2 .

It is not an unprimeable number, because it can be changed into a prime (878395229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219598805 + ... + 219598808.

Almost surely, 2^878395226 is an apocalyptic number.

878395226 is a deficient number, since it is larger than the sum of its proper divisors (439197616).

878395226 is a wasteful number, since it uses less digits than its factorization.

878395226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439197615.

The product of its digits is 1451520, while the sum is 50.

The square root of 878395226 is about 29637.7331454347. The cubic root of 878395226 is about 957.7011059017.

The spelling of 878395226 in words is "eight hundred seventy-eight million, three hundred ninety-five thousand, two hundred twenty-six".