3703621 has 8 divisors (see below), whose sum is σ = 3885120. Its totient is φ = 3523872.

The previous prime is 3703597. The next prime is 3703631. The reversal of 3703621 is 1263073.

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

It is a cyclic number.

It is not a de Polignac number, because 3703621 - 2⁹ = 3703109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3703592 and 3703601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3703631) 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, 6225 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (485640).

Almost surely, 2^3703621 is an apocalyptic number.

It is an amenable number.

3703621 is a deficient number, since it is larger than the sum of its proper divisors (181499).

3703621 is a wasteful number, since it uses less digits than its factorization.

3703621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 3703621 is about 1924.4794101263. The cubic root of 3703621 is about 154.7184761488.

Adding to 3703621 its reverse (1263073), we get a palindrome (4966694).

The spelling of 3703621 in words is "three million, seven hundred three thousand, six hundred twenty-one".