108643722 has 48 divisors (see below), whose sum is σ = 240166080. Its totient is φ = 32739520.

The previous prime is 108643663. The next prime is 108643741. The reversal of 108643722 is 227346801.

It is a super-3 number, since 3×108643722³ (a number of 25 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190654 + ... + 191222.

It is an arithmetic number, because the mean of its divisors is an integer number (5003460).

Almost surely, 2^108643722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108643722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120083040).

108643722 is an abundant number, since it is smaller than the sum of its proper divisors (131522358).

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

108643722 is a wasteful number, since it uses less digits than its factorization.

108643722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 108643722 is about 10423.2299216702. The cubic root of 108643722 is about 477.1645947369.

The spelling of 108643722 in words is "one hundred eight million, six hundred forty-three thousand, seven hundred twenty-two".