3721662 has 24 divisors (see below), whose sum is σ = 9215856. Its totient is φ = 1063296.

The previous prime is 3721631. The next prime is 3721673. The reversal of 3721662 is 2661273.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14643 + ... + 14894.

It is an arithmetic number, because the mean of its divisors is an integer number (383994).

Almost surely, 2^3721662 is an apocalyptic number.

3721662 is an abundant number, since it is smaller than the sum of its proper divisors (5494194).

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

3721662 is a wasteful number, since it uses less digits than its factorization.

3721662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29552 (or 29549 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 3721662 is about 1929.1609575150. The cubic root of 3721662 is about 154.9692897881.

The spelling of 3721662 in words is "three million, seven hundred twenty-one thousand, six hundred sixty-two".