733473221 has 4 divisors (see below), whose sum is σ = 789894252. Its totient is φ = 677052192.

The previous prime is 733473217. The next prime is 733473227. The reversal of 733473221 is 122374337.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69122596 + 664350625 = 8314^2 + 25775^2 .

It is a cyclic number.

It is not a de Polignac number, because 733473221 - 2² = 733473217 is a prime.

It is a super-2 number, since 2×733473221² = 1075965931848229682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733473227) 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 3 ways as a sum of consecutive naturals, for example, 28210496 + ... + 28210521.

It is an arithmetic number, because the mean of its divisors is an integer number (197473563).

Almost surely, 2^733473221 is an apocalyptic number.

It is an amenable number.

733473221 is a deficient number, since it is larger than the sum of its proper divisors (56421031).

733473221 is a wasteful number, since it uses less digits than its factorization.

733473221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56421030.

The product of its digits is 21168, while the sum is 32.

The square root of 733473221 is about 27082.7107395105. The cubic root of 733473221 is about 901.8370792910.

The spelling of 733473221 in words is "seven hundred thirty-three million, four hundred seventy-three thousand, two hundred twenty-one".