4293934721 has 8 divisors (see below), whose sum is σ = 4403599200. Its totient is φ = 4184716032.

The previous prime is 4293934709. The next prime is 4293934727. The reversal of 4293934721 is 1274393924.

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 4293934721 - 2⁶ = 4293934657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4293934727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91895 + ... + 130508.

It is an arithmetic number, because the mean of its divisors is an integer number (550449900).

Almost surely, 2^4293934721 is an apocalyptic number.

It is an amenable number.

4293934721 is a deficient number, since it is larger than the sum of its proper divisors (109664479).

4293934721 is a wasteful number, since it uses less digits than its factorization.

4293934721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222895.

The product of its digits is 326592, while the sum is 44.

The square root of 4293934721 is about 65528.1216043921. The cubic root of 4293934721 is about 1625.3684019648.

The spelling of 4293934721 in words is "four billion, two hundred ninety-three million, nine hundred thirty-four thousand, seven hundred twenty-one".