878573 has 2 divisors, whose sum is σ = 878574. Its totient is φ = 878572.

The previous prime is 878567. The next prime is 878593. The reversal of 878573 is 375878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 413449 = 682^2 + 643^2 .

It is a cyclic number.

It is not a de Polignac number, because 878573 - 2¹² = 874477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439286 + 439287.

It is an arithmetic number, because the mean of its divisors is an integer number (439287).

2⁸⁷⁸⁵⁷³ is an apocalyptic number.

It is an amenable number.

878573 is a deficient number, since it is larger than the sum of its proper divisors (1).

878573 is an equidigital number, since it uses as much as digits as its factorization.

878573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 38.

The square root of 878573 is about 937.3222498159. The cubic root of 878573 is about 95.7765709650.

The spelling of 878573 in words is "eight hundred seventy-eight thousand, five hundred seventy-three".