862878804 has 48 divisors (see below), whose sum is σ = 2029222272. Its totient is φ = 285374592.

The previous prime is 862878799. The next prime is 862878823. The reversal of 862878804 is 408878268.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176822 + ... + 1177554.

It is an arithmetic number, because the mean of its divisors is an integer number (42275464).

Almost surely, 2^862878804 is an apocalyptic number.

It is an amenable number.

862878804 is an abundant number, since it is smaller than the sum of its proper divisors (1166343468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

862878804 is a wasteful number, since it uses less digits than its factorization.

862878804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 1374 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 51.

The square root of 862878804 is about 29374.7987908003. The cubic root of 862878804 is about 952.0284649470.

The spelling of 862878804 in words is "eight hundred sixty-two million, eight hundred seventy-eight thousand, eight hundred four".