3721693 has 8 divisors (see below), whose sum is σ = 3902976. Its totient is φ = 3544800.

The previous prime is 3721673. The next prime is 3721717. The reversal of 3721693 is 3961273.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3721693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721603) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 708 + ... + 2818.

It is an arithmetic number, because the mean of its divisors is an integer number (487872).

Almost surely, 2^3721693 is an apocalyptic number.

It is an amenable number.

3721693 is a deficient number, since it is larger than the sum of its proper divisors (181283).

3721693 is a wasteful number, since it uses less digits than its factorization.

3721693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its digits is 6804, while the sum is 31.

The square root of 3721693 is about 1929.1689920792. The cubic root of 3721693 is about 154.9697200649.

The spelling of 3721693 in words is "three million, seven hundred twenty-one thousand, six hundred ninety-three".