3234721 has 4 divisors (see below), whose sum is σ = 3696832. Its totient is φ = 2772612.

The previous prime is 3234719. The next prime is 3234733. The reversal of 3234721 is 1274323.

3234721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 3234721 - 2¹ = 3234719 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3234692 and 3234701.

It is not an unprimeable number, because it can be changed into a prime (3234701) 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 3 ways as a sum of consecutive naturals, for example, 231045 + ... + 231058.

It is an arithmetic number, because the mean of its divisors is an integer number (924208).

Almost surely, 2^3234721 is an apocalyptic number.

It is an amenable number.

3234721 is a deficient number, since it is larger than the sum of its proper divisors (462111).

3234721 is an equidigital number, since it uses as much as digits as its factorization.

3234721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462110.

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

The square root of 3234721 is about 1798.5330133195. The cubic root of 3234721 is about 147.8923157516.

The spelling of 3234721 in words is "three million, two hundred thirty-four thousand, seven hundred twenty-one".