877798 has 4 divisors (see below), whose sum is σ = 1316700. Its totient is φ = 438898.

The previous prime is 877783. The next prime is 877817. The reversal of 877798 is 897778.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable 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, 219448 + ... + 219451.

It is an arithmetic number, because the mean of its divisors is an integer number (329175).

2⁸⁷⁷⁷⁹⁸ is an apocalyptic number.

877798 is a deficient number, since it is larger than the sum of its proper divisors (438902).

877798 is a wasteful number, since it uses less digits than its factorization.

877798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438901.

The product of its digits is 197568, while the sum is 46.

The square root of 877798 is about 936.9087468905. The cubic root of 877798 is about 95.7484007850.

The spelling of 877798 in words is "eight hundred seventy-seven thousand, seven hundred ninety-eight".