878425 has 12 divisors (see below), whose sum is σ = 1117116. Its totient is φ = 684800.

The previous prime is 878419. The next prime is 878443. The reversal of 878425 is 524878.

It can be written as a sum of positive squares in 6 ways, for example, as 24649 + 853776 = 157^2 + 924^2 .

It is not a de Polignac number, because 878425 - 2¹⁵ = 845657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (93093).

2⁸⁷⁸⁴²⁵ is an apocalyptic number.

It is an amenable number.

878425 is a deficient number, since it is larger than the sum of its proper divisors (238691).

878425 is a wasteful number, since it uses less digits than its factorization.

878425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 903 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 878425 is about 937.2432981889. The cubic root of 878425 is about 95.7711926494.

The spelling of 878425 in words is "eight hundred seventy-eight thousand, four hundred twenty-five".