878767 has 4 divisors (see below), whose sum is σ = 891216. Its totient is φ = 866320.

The previous prime is 878749. The next prime is 878777. The reversal of 878767 is 767878.

878767 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is not a de Polignac number, because 878767 - 2¹¹ = 876719 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6118 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (222804).

2⁸⁷⁸⁷⁶⁷ is an apocalyptic number.

878767 is a deficient number, since it is larger than the sum of its proper divisors (12449).

878767 is a wasteful number, since it uses less digits than its factorization.

878767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448.

The product of its digits is 131712, while the sum is 43.

The square root of 878767 is about 937.4257303915. The cubic root of 878767 is about 95.7836200045.

Subtracting from 878767 its reverse (767878), we obtain a square (110889 = 333²).

The spelling of 878767 in words is "eight hundred seventy-eight thousand, seven hundred sixty-seven".