733013221 has 8 divisors (see below), whose sum is σ = 744641280. Its totient is φ = 721428192.

The previous prime is 733013213. The next prime is 733013233. The reversal of 733013221 is 122310337.

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 733013221 - 2³ = 733013213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 733013192 and 733013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733013201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24486 + ... + 45448.

It is an arithmetic number, because the mean of its divisors is an integer number (93080160).

Almost surely, 2^733013221 is an apocalyptic number.

It is an amenable number.

733013221 is a deficient number, since it is larger than the sum of its proper divisors (11628059).

733013221 is a wasteful number, since it uses less digits than its factorization.

733013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21515.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 733013221 is about 27074.2169046493. The cubic root of 733013221 is about 901.6485098934.

Adding to 733013221 its reverse (122310337), we get a palindrome (855323558).

The spelling of 733013221 in words is "seven hundred thirty-three million, thirteen thousand, two hundred twenty-one".