3698660 has 48 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 1223040.

The previous prime is 3698659. The next prime is 3698663. The reversal of 3698660 is 668963.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3698663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3605 + ... + 4515.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

Almost surely, 2^3698660 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 3698660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4596480).

3698660 is an abundant number, since it is smaller than the sum of its proper divisors (5494300).

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

3698660 is a wasteful number, since it uses less digits than its factorization.

3698660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 3698660 is about 1923.1900582106. The cubic root of 3698660 is about 154.6493634858.

The spelling of 3698660 in words is "three million, six hundred ninety-eight thousand, six hundred sixty".