3721622 has 8 divisors (see below), whose sum is σ = 5590776. Its totient is φ = 1858032.

The previous prime is 3721621. The next prime is 3721631. The reversal of 3721622 is 2261273.

3721622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418 + ... + 3074.

It is an arithmetic number, because the mean of its divisors is an integer number (698847).

Almost surely, 2^3721622 is an apocalyptic number.

3721622 is a deficient number, since it is larger than the sum of its proper divisors (1869154).

3721622 is a wasteful number, since it uses less digits than its factorization.

3721622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782.

The product of its digits is 1008, while the sum is 23.

The square root of 3721622 is about 1929.1505902858. The cubic root of 3721622 is about 154.9687345887.

Adding to 3721622 its reverse (2261273), we get a palindrome (5982895).

The spelling of 3721622 in words is "three million, seven hundred twenty-one thousand, six hundred twenty-two".