8431616 has 48 divisors (see below), whose sum is σ = 17690400. Its totient is φ = 4009984.

The previous prime is 8431607. The next prime is 8431627. The reversal of 8431616 is 6161348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47015 + ... + 47193.

It is an arithmetic number, because the mean of its divisors is an integer number (368550).

Almost surely, 2^8431616 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 8431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8845200).

8431616 is an abundant number, since it is smaller than the sum of its proper divisors (9258784).

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

8431616 is a wasteful number, since it uses less digits than its factorization.

8431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 204 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 8431616 is about 2903.7245048386. The cubic root of 8431616 is about 203.5339868820.

The spelling of 8431616 in words is "eight million, four hundred thirty-one thousand, six hundred sixteen".