108421712 has 60 divisors (see below), whose sum is σ = 250398036. Its totient is φ = 45319680.

The previous prime is 108421711. The next prime is 108421727. The reversal of 108421712 is 217124801.

It can be written as a sum of positive squares in 2 ways, for example, as 60590656 + 47831056 = 7784^2 + 6916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108421711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30458 + ... + 33830.

Almost surely, 2^108421712 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 108421712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125199018).

108421712 is an abundant number, since it is smaller than the sum of its proper divisors (141976324).

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

108421712 is a wasteful number, since it uses less digits than its factorization.

108421712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3423 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 108421712 is about 10412.5747056144. The cubic root of 108421712 is about 476.8393495219.

The spelling of 108421712 in words is "one hundred eight million, four hundred twenty-one thousand, seven hundred twelve".