3715668 has 54 divisors (see below), whose sum is σ = 10335962. Its totient is φ = 1124640.

The previous prime is 3715667. The next prime is 3715669. The reversal of 3715668 is 8665173.

3715668 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3715667) and next prime (3715669).

It can be written as a sum of positive squares in only one way, i.e., 2304324 + 1411344 = 1518^2 + 1188^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3715667) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3930 + ... + 4782.

Almost surely, 2^3715668 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 3715668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5167981).

3715668 is an abundant number, since it is smaller than the sum of its proper divisors (6620294).

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

3715668 is a wasteful number, since it uses less digits than its factorization.

3715668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 869 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3715668 is about 1927.6068063794. The cubic root of 3715668 is about 154.8860487479.

The spelling of 3715668 in words is "three million, seven hundred fifteen thousand, six hundred sixty-eight".