8404994 has 16 divisors (see below), whose sum is σ = 13945848. Its totient is φ = 3773952.

The previous prime is 8404993. The next prime is 8404997. The reversal of 8404994 is 4994048.

It can be written as a sum of positive squares in 4 ways, for example, as 6996025 + 1408969 = 2645^2 + 1187^2 .

It is not an unprimeable number, because it can be changed into a prime (8404993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3407 + ... + 5330.

Almost surely, 2^8404994 is an apocalyptic number.

8404994 is a deficient number, since it is larger than the sum of its proper divisors (5540854).

8404994 is a wasteful number, since it uses less digits than its factorization.

8404994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 8404994 is about 2899.1367680742. The cubic root of 8404994 is about 203.3195481711.

The spelling of 8404994 in words is "eight million, four hundred four thousand, nine hundred ninety-four".