8400884 has 6 divisors (see below), whose sum is σ = 14701554. Its totient is φ = 4200440.

The previous prime is 8400883. The next prime is 8400901. The reversal of 8400884 is 4880048.

It can be written as a sum of positive squares in only one way, i.e., 7344100 + 1056784 = 2710^2 + 1028^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8400884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400883) 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 as a sum of consecutive naturals, namely, 1050107 + ... + 1050114.

It is an arithmetic number, because the mean of its divisors is an integer number (2450259).

Almost surely, 2^8400884 is an apocalyptic number.

It is an amenable number.

8400884 is a deficient number, since it is larger than the sum of its proper divisors (6300670).

8400884 is a wasteful number, since it uses less digits than its factorization.

8400884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100225 (or 2100223 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 8400884 is about 2898.4278497144. The cubic root of 8400884 is about 203.2864020206.

The spelling of 8400884 in words is "eight million, four hundred thousand, eight hundred eighty-four".