4394721333 has 8 divisors (see below), whose sum is σ = 5859943488. Its totient is φ = 2929656704.

The previous prime is 4394721329. The next prime is 4394721347. The reversal of 4394721333 is 3331274934.

It is a happy number.

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 4394721333 - 2² = 4394721329 is a prime.

It is a super-3 number, since 3×4394721333³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4394721291 and 4394721300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4394731333) 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 7 ways as a sum of consecutive naturals, for example, 66016 + ... + 114662.

It is an arithmetic number, because the mean of its divisors is an integer number (732492936).

Almost surely, 2^4394721333 is an apocalyptic number.

It is an amenable number.

4394721333 is a deficient number, since it is larger than the sum of its proper divisors (1465222155).

4394721333 is a wasteful number, since it uses less digits than its factorization.

4394721333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78763.

The product of its digits is 163296, while the sum is 39.

The square root of 4394721333 is about 66292.6944165041. The cubic root of 4394721333 is about 1637.9869874376.

The spelling of 4394721333 in words is "four billion, three hundred ninety-four million, seven hundred twenty-one thousand, three hundred thirty-three".