8631612 has 72 divisors (see below), whose sum is σ = 24216192. Its totient is φ = 2570400.

The previous prime is 8631611. The next prime is 8631617. The reversal of 8631612 is 2161368.

8631612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8631611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27963 + ... + 28269.

It is an arithmetic number, because the mean of its divisors is an integer number (336336).

Almost surely, 2^8631612 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 8631612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12108096).

8631612 is an abundant number, since it is smaller than the sum of its proper divisors (15584580).

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

8631612 is a wasteful number, since it uses less digits than its factorization.

8631612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 394 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8631612 is about 2937.9605170934. The cubic root of 8631612 is about 205.1306880346.

The spelling of 8631612 in words is "eight million, six hundred thirty-one thousand, six hundred twelve".