73209066 has 32 divisors (see below), whose sum is σ = 168075648. Its totient is φ = 20824320.

The previous prime is 73209061. The next prime is 73209077. The reversal of 73209066 is 66090237.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73209061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6046 + ... + 13526.

It is an arithmetic number, because the mean of its divisors is an integer number (5252364).

Almost surely, 2^73209066 is an apocalyptic number.

73209066 is an abundant number, since it is smaller than the sum of its proper divisors (94866582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73209066 is a wasteful number, since it uses less digits than its factorization.

73209066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 73209066 is about 8556.2296603118. The cubic root of 73209066 is about 418.3325154964.

The spelling of 73209066 in words is "seventy-three million, two hundred nine thousand, sixty-six".