8413644 has 24 divisors (see below), whose sum is σ = 20003760. Its totient is φ = 2751424.

The previous prime is 8413631. The next prime is 8413649. The reversal of 8413644 is 4463148.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8413649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5979 + ... + 7250.

It is an arithmetic number, because the mean of its divisors is an integer number (833490).

Almost surely, 2^8413644 is an apocalyptic number.

It is an amenable number.

8413644 is an abundant number, since it is smaller than the sum of its proper divisors (11590116).

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

8413644 is a wasteful number, since it uses less digits than its factorization.

8413644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13289 (or 13287 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 8413644 is about 2900.6282078198. The cubic root of 8413644 is about 203.3892730319.

The spelling of 8413644 in words is "eight million, four hundred thirteen thousand, six hundred forty-four".