3734322721 has 8 divisors (see below), whose sum is σ = 3865204800. Its totient is φ = 3603581520.

The previous prime is 3734322703. The next prime is 3734322733. The reversal of 3734322721 is 1272234373.

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 3734322721 - 2¹¹ = 3734320673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3734322701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20226 + ... + 88756.

It is an arithmetic number, because the mean of its divisors is an integer number (483150600).

Almost surely, 2^3734322721 is an apocalyptic number.

It is an amenable number.

3734322721 is a deficient number, since it is larger than the sum of its proper divisors (130882079).

3734322721 is a wasteful number, since it uses less digits than its factorization.

3734322721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70439.

The product of its digits is 42336, while the sum is 34.

The square root of 3734322721 is about 61109.1050580844. The cubic root of 3734322721 is about 1551.4482088763.

The spelling of 3734322721 in words is "three billion, seven hundred thirty-four million, three hundred twenty-two thousand, seven hundred twenty-one".