878147 has 2 divisors, whose sum is σ = 878148. Its totient is φ = 878146.

The previous prime is 878131. The next prime is 878153. The reversal of 878147 is 741878.

878147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878147 - 2⁴ = 878131 is a prime.

It is a super-2 number, since 2×878147² = 1542284307218, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878147.

It is not a weakly prime, because it can be changed into another prime (878107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439073 + 439074.

It is an arithmetic number, because the mean of its divisors is an integer number (439074).

2⁸⁷⁸¹⁴⁷ is an apocalyptic number.

878147 is a deficient number, since it is larger than the sum of its proper divisors (1).

878147 is an equidigital number, since it uses as much as digits as its factorization.

878147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 35.

The square root of 878147 is about 937.0949791777. The cubic root of 878147 is about 95.7610885044.

The spelling of 878147 in words is "eight hundred seventy-eight thousand, one hundred forty-seven".