3659916 has 48 divisors (see below), whose sum is σ = 9525600. Its totient is φ = 1085952.

The previous prime is 3659861. The next prime is 3659917. The reversal of 3659916 is 6199563.

3659916 = 189² + 190² + ... + 260².

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (3659917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4120 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

Almost surely, 2^3659916 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 3659916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4762800).

3659916 is an abundant number, since it is smaller than the sum of its proper divisors (5865684).

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

3659916 is a wasteful number, since it uses less digits than its factorization.

3659916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its digits is 43740, while the sum is 39.

The square root of 3659916 is about 1913.0906930932. The cubic root of 3659916 is about 154.1074754345.

The spelling of 3659916 in words is "three million, six hundred fifty-nine thousand, nine hundred sixteen".