73215207 has 24 divisors (see below), whose sum is σ = 116049024. Its totient is φ = 44201664.

The previous prime is 73215161. The next prime is 73215229. The reversal of 73215207 is 70251237.

It is not a de Polignac number, because 73215207 - 2¹² = 73211111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73215407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298 + ... + 12104.

It is an arithmetic number, because the mean of its divisors is an integer number (4835376).

Almost surely, 2^73215207 is an apocalyptic number.

73215207 is a deficient number, since it is larger than the sum of its proper divisors (42833817).

73215207 is a wasteful number, since it uses less digits than its factorization.

73215207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879 (or 11876 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 73215207 is about 8556.5885141217. The cubic root of 73215207 is about 418.3442121723.

The spelling of 73215207 in words is "seventy-three million, two hundred fifteen thousand, two hundred seven".