73357221 has 16 divisors (see below), whose sum is σ = 111919104. Its totient is φ = 41867184.

The previous prime is 73357181. The next prime is 73357223. The reversal of 73357221 is 12275337.

It is not a de Polignac number, because 73357221 - 2¹⁰ = 73356197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73357223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21580 + ... + 24746.

It is an arithmetic number, because the mean of its divisors is an integer number (6994944).

Almost surely, 2^73357221 is an apocalyptic number.

It is an amenable number.

73357221 is a deficient number, since it is larger than the sum of its proper divisors (38561883).

73357221 is a wasteful number, since it uses less digits than its factorization.

73357221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280.

The product of its digits is 8820, while the sum is 30.

The square root of 73357221 is about 8564.8830114602. The cubic root of 73357221 is about 418.6145219714.

The spelling of 73357221 in words is "seventy-three million, three hundred fifty-seven thousand, two hundred twenty-one".