3726321 has 4 divisors (see below), whose sum is σ = 4968432. Its totient is φ = 2484212.

The previous prime is 3726319. The next prime is 3726323. The reversal of 3726321 is 1236273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (3726319) and next prime (3726323).

It is a cyclic number.

It is not a de Polignac number, because 3726321 - 2¹ = 3726319 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 3726291 and 3726300.

It is not an unprimeable number, because it can be changed into a prime (3726323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621051 + ... + 621056.

It is an arithmetic number, because the mean of its divisors is an integer number (1242108).

Almost surely, 2^3726321 is an apocalyptic number.

It is an amenable number.

3726321 is a deficient number, since it is larger than the sum of its proper divisors (1242111).

3726321 is a wasteful number, since it uses less digits than its factorization.

3726321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242110.

The product of its digits is 1512, while the sum is 24.

The square root of 3726321 is about 1930.3680996121. The cubic root of 3726321 is about 155.0339294436.

The spelling of 3726321 in words is "three million, seven hundred twenty-six thousand, three hundred twenty-one".