3724321 has 8 divisors (see below), whose sum is σ = 3911040. Its totient is φ = 3539712.

The previous prime is 3724319. The next prime is 3724333. The reversal of 3724321 is 1234273.

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 3724321 - 2¹ = 3724319 is a prime.

It is a super-2 number, since 2×3724321² = 27741133822082, 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 = 3724292 and 3724301.

It is not an unprimeable number, because it can be changed into a prime (3724621) 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, 4020 + ... + 4858.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

Almost surely, 2^3724321 is an apocalyptic number.

It is an amenable number.

3724321 is a deficient number, since it is larger than the sum of its proper divisors (186719).

3724321 is a wasteful number, since it uses less digits than its factorization.

3724321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its digits is 1008, while the sum is 22.

The square root of 3724321 is about 1929.8499941705. The cubic root of 3724321 is about 155.0061877516.

Adding to 3724321 its reverse (1234273), we get a palindrome (4958594).

The spelling of 3724321 in words is "three million, seven hundred twenty-four thousand, three hundred twenty-one".