34344721 has 4 divisors (see below), whose sum is σ = 34437172. Its totient is φ = 34252272.

The previous prime is 34344677. The next prime is 34344749. The reversal of 34344721 is 12744343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12744343 = 1289 ⋅9887.

It can be written as a sum of positive squares in 2 ways, for example, as 21492496 + 12852225 = 4636^2 + 3585^2 .

It is a cyclic number.

It is not a de Polignac number, because 34344721 - 2⁹ = 34344209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34344721.

It is not an unprimeable number, because it can be changed into a prime (34344521) 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, 45666 + ... + 46411.

It is an arithmetic number, because the mean of its divisors is an integer number (8609293).

Almost surely, 2^34344721 is an apocalyptic number.

It is an amenable number.

34344721 is a deficient number, since it is larger than the sum of its proper divisors (92451).

34344721 is an equidigital number, since it uses as much as digits as its factorization.

34344721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92450.

The product of its digits is 8064, while the sum is 28.

The square root of 34344721 is about 5860.4369291035. The cubic root of 34344721 is about 325.0523655267.

The spelling of 34344721 in words is "thirty-four million, three hundred forty-four thousand, seven hundred twenty-one".