73228307 has 4 divisors (see below), whose sum is σ = 73983336. Its totient is φ = 72473280.

The previous prime is 73228289. The next prime is 73228313. The reversal of 73228307 is 70382237.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 73228307 - 2¹⁰ = 73227283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73228357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377369 + ... + 377562.

It is an arithmetic number, because the mean of its divisors is an integer number (18495834).

Almost surely, 2^73228307 is an apocalyptic number.

73228307 is a deficient number, since it is larger than the sum of its proper divisors (755029).

73228307 is an equidigital number, since it uses as much as digits as its factorization.

73228307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755028.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 73228307 is about 8557.3539718771. The cubic root of 73228307 is about 418.3691613715.

The spelling of 73228307 in words is "seventy-three million, two hundred twenty-eight thousand, three hundred seven".