73343221 has 8 divisors (see below), whose sum is σ = 84096320. Its totient is φ = 62659008.

The previous prime is 73343189. The next prime is 73343239. The reversal of 73343221 is 12234337.

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 73343221 - 2⁵ = 73343189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73343821) 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, 14916 + ... + 19213.

It is an arithmetic number, because the mean of its divisors is an integer number (10512040).

Almost surely, 2^73343221 is an apocalyptic number.

It is an amenable number.

73343221 is a deficient number, since it is larger than the sum of its proper divisors (10753099).

73343221 is a wasteful number, since it uses less digits than its factorization.

73343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34443.

The product of its digits is 3024, while the sum is 25.

The square root of 73343221 is about 8564.0656816725. The cubic root of 73343221 is about 418.5878898458.

Adding to 73343221 its reverse (12234337), we get a palindrome (85577558).

The spelling of 73343221 in words is "seventy-three million, three hundred forty-three thousand, two hundred twenty-one".