3444721 has 4 divisors (see below), whose sum is σ = 3936832. Its totient is φ = 2952612.

The previous prime is 3444713. The next prime is 3444739. The reversal of 3444721 is 1274443.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1274443 = 467 ⋅2729.

It is a cyclic number.

It is not a de Polignac number, because 3444721 - 2³ = 3444713 is a prime.

It is a super-2 number, since 2×3444721² = 23732205535682, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3444781) 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 3 ways as a sum of consecutive naturals, for example, 246045 + ... + 246058.

It is an arithmetic number, because the mean of its divisors is an integer number (984208).

Almost surely, 2^3444721 is an apocalyptic number.

It is an amenable number.

3444721 is a deficient number, since it is larger than the sum of its proper divisors (492111).

3444721 is an equidigital number, since it uses as much as digits as its factorization.

3444721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492110.

The product of its digits is 2688, while the sum is 25.

The square root of 3444721 is about 1855.9959590473. The cubic root of 3444721 is about 151.0258716251.

The spelling of 3444721 in words is "three million, four hundred forty-four thousand, seven hundred twenty-one".