878479 has 4 divisors (see below), whose sum is σ = 1003984. Its totient is φ = 752976.

The previous prime is 878467. The next prime is 878489. The reversal of 878479 is 974878.

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

It is not a de Polignac number, because 878479 - 2¹¹ = 876431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62742 + ... + 62755.

It is an arithmetic number, because the mean of its divisors is an integer number (250996).

2⁸⁷⁸⁴⁷⁹ is an apocalyptic number.

878479 is a deficient number, since it is larger than the sum of its proper divisors (125505).

878479 is a wasteful number, since it uses less digits than its factorization.

878479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125504.

The product of its digits is 112896, while the sum is 43.

The square root of 878479 is about 937.2721056342. The cubic root of 878479 is about 95.7731550778.

It can be divided in two parts, 8 and 78479, that added together give a palindrome (78487).

The spelling of 878479 in words is "eight hundred seventy-eight thousand, four hundred seventy-nine".