878773 has 4 divisors (see below), whose sum is σ = 1004320. Its totient is φ = 753228.

The previous prime is 878749. The next prime is 878777. The reversal of 878773 is 377878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 377878 = 2 ⋅188939.

It is a de Polignac number, because none of the positive numbers 2^k-878773 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878777) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 62763 + ... + 62776.

It is an arithmetic number, because the mean of its divisors is an integer number (251080).

2⁸⁷⁸⁷⁷³ is an apocalyptic number.

It is an amenable number.

878773 is a deficient number, since it is larger than the sum of its proper divisors (125547).

878773 is a wasteful number, since it uses less digits than its factorization.

878773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125546.

The product of its digits is 65856, while the sum is 40.

The square root of 878773 is about 937.4289306395. The cubic root of 878773 is about 95.7838379995.

The spelling of 878773 in words is "eight hundred seventy-eight thousand, seven hundred seventy-three".