73275609 has 16 divisors (see below), whose sum is σ = 112193280. Its totient is φ = 42071760.

The previous prime is 73275607. The next prime is 73275659. The reversal of 73275609 is 90657237.

It is not a de Polignac number, because 73275609 - 2¹ = 73275607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73275607) 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, 57807 + ... + 59060.

It is an arithmetic number, because the mean of its divisors is an integer number (7012080).

Almost surely, 2^73275609 is an apocalyptic number.

It is an amenable number.

73275609 is a deficient number, since it is larger than the sum of its proper divisors (38917671).

73275609 is a wasteful number, since it uses less digits than its factorization.

73275609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116900.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 73275609 is about 8560.1173473265. The cubic root of 73275609 is about 418.4592241689.

The spelling of 73275609 in words is "seventy-three million, two hundred seventy-five thousand, six hundred nine".