8404836 has 48 divisors (see below), whose sum is σ = 21930048. Its totient is φ = 2483200.

The previous prime is 8404819. The next prime is 8404849. The reversal of 8404836 is 6384048.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 8404797 and 8404806.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4636 + ... + 6188.

It is an arithmetic number, because the mean of its divisors is an integer number (456876).

Almost surely, 2^8404836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8404836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10965024).

8404836 is an abundant number, since it is smaller than the sum of its proper divisors (13525212).

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

8404836 is a wasteful number, since it uses less digits than its factorization.

8404836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 8404836 is about 2899.1095184556. The cubic root of 8404836 is about 203.3182741393.

The spelling of 8404836 in words is "eight million, four hundred four thousand, eight hundred thirty-six".