878554 has 16 divisors (see below), whose sum is σ = 1399680. Its totient is φ = 412720.

The previous prime is 878551. The next prime is 878567. The reversal of 878554 is 455878.

It is not an unprimeable number, because it can be changed into a prime (878551) 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 7 ways as a sum of consecutive naturals, for example, 3132 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (87480).

2⁸⁷⁸⁵⁵⁴ is an apocalyptic number.

878554 is a deficient number, since it is larger than the sum of its proper divisors (521126).

878554 is a wasteful number, since it uses less digits than its factorization.

878554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its digits is 44800, while the sum is 37.

The square root of 878554 is about 937.3121145062. The cubic root of 878554 is about 95.7758805394.

The spelling of 878554 in words is "eight hundred seventy-eight thousand, five hundred fifty-four".