878126 has 4 divisors (see below), whose sum is σ = 1317192. Its totient is φ = 439062.

The previous prime is 878113. The next prime is 878131. The reversal of 878126 is 621878.

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

It is a super-2 number, since 2×878126² = 1542210543752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878092 and 878101.

It is a congruent number.

It is an unprimeable number.

878126 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219530 + ... + 219533.

It is an arithmetic number, because the mean of its divisors is an integer number (329298).

2⁸⁷⁸¹²⁶ is an apocalyptic number.

878126 is a deficient number, since it is larger than the sum of its proper divisors (439066).

878126 is a wasteful number, since it uses less digits than its factorization.

878126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439065.

The product of its digits is 5376, while the sum is 32.

The square root of 878126 is about 937.0837742699. The cubic root of 878126 is about 95.7603251551.

The spelling of 878126 in words is "eight hundred seventy-eight thousand, one hundred twenty-six".