3696621 has 8 divisors (see below), whose sum is σ = 5188320. Its totient is φ = 2334672.

The previous prime is 3696619. The next prime is 3696643. The reversal of 3696621 is 1266963.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3696621 - 2¹ = 3696619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3696421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32370 + ... + 32483.

It is an arithmetic number, because the mean of its divisors is an integer number (648540).

Almost surely, 2^3696621 is an apocalyptic number.

It is an amenable number.

3696621 is a deficient number, since it is larger than the sum of its proper divisors (1491699).

3696621 is a wasteful number, since it uses less digits than its factorization.

3696621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64875.

The product of its digits is 11664, while the sum is 33.

The square root of 3696621 is about 1922.6598763172. The cubic root of 3696621 is about 154.6209398571.

The spelling of 3696621 in words is "three million, six hundred ninety-six thousand, six hundred twenty-one".