3721619 has 8 divisors (see below), whose sum is σ = 4083312. Its totient is φ = 3363840.

The previous prime is 3721603. The next prime is 3721621. The reversal of 3721619 is 9161273.

3721619 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 cyclic number.

It is not a de Polignac number, because 3721619 - 2⁴ = 3721603 is a prime.

It is a super-2 number, since 2×3721619² = 27700895962322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3721591 and 3721600.

It is not an unprimeable number, because it can be changed into a prime (3721919) 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 7 ways as a sum of consecutive naturals, for example, 1247 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (510414).

Almost surely, 2^3721619 is an apocalyptic number.

3721619 is a deficient number, since it is larger than the sum of its proper divisors (361693).

3721619 is a wasteful number, since it uses less digits than its factorization.

3721619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957.

The product of its digits is 2268, while the sum is 29.

The square root of 3721619 is about 1929.1498127414. The cubic root of 3721619 is about 154.9686929486.

It can be divided in two parts, 372 and 1619, that added together give a palindrome (1991).

The spelling of 3721619 in words is "three million, seven hundred twenty-one thousand, six hundred nineteen".