877384820 has 24 divisors (see below), whose sum is σ = 1984240104. Its totient is φ = 323957376.

The previous prime is 877384813. The next prime is 877384889. The reversal of 877384820 is 28483778.

It is a happy number.

877384820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 35688676 + 841696144 = 5974^2 + 29012^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1687019 + ... + 1687538.

It is an arithmetic number, because the mean of its divisors is an integer number (82676671).

Almost surely, 2^877384820 is an apocalyptic number.

It is an amenable number.

877384820 is an abundant number, since it is smaller than the sum of its proper divisors (1106855284).

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

877384820 is a wasteful number, since it uses less digits than its factorization.

877384820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374579 (or 3374577 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 877384820 is about 29620.6823013920. The cubic root of 877384820 is about 957.3337548568. Note that the first 3 decimals are identical.

The spelling of 877384820 in words is "eight hundred seventy-seven million, three hundred eighty-four thousand, eight hundred twenty".