3721719 has 8 divisors (see below), whose sum is σ = 5096560. Its totient is φ = 2414016.

The previous prime is 3721717. The next prime is 3721721. The reversal of 3721719 is 9171273.

It is an interprime number because it is at equal distance from previous prime (3721717) and next prime (3721721).

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

It is not a de Polignac number, because 3721719 - 2¹ = 3721717 is a prime.

It is a super-2 number, since 2×3721719² = 27702384629922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721717) 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, 16654 + ... + 16875.

It is an arithmetic number, because the mean of its divisors is an integer number (637070).

Almost surely, 2^3721719 is an apocalyptic number.

3721719 is a deficient number, since it is larger than the sum of its proper divisors (1374841).

3721719 is a wasteful number, since it uses less digits than its factorization.

3721719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33569.

The product of its digits is 2646, while the sum is 30.

The square root of 3721719 is about 1929.1757307202. The cubic root of 3721719 is about 154.9700809404.

The spelling of 3721719 in words is "three million, seven hundred twenty-one thousand, seven hundred nineteen".