73548009 has 12 divisors (see below), whose sum is σ = 106852356. Its totient is φ = 48747552.

The previous prime is 73547989. The next prime is 73548037. The reversal of 73548009 is 90084537.

It can be written as a sum of positive squares in 2 ways, for example, as 29192409 + 44355600 = 5403^2 + 6660^2 .

It is not a de Polignac number, because 73548009 - 2⁸ = 73547753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73540009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22062 + ... + 25175.

It is an arithmetic number, because the mean of its divisors is an integer number (8904363).

Almost surely, 2^73548009 is an apocalyptic number.

It is an amenable number.

73548009 is a deficient number, since it is larger than the sum of its proper divisors (33304347).

73548009 is a wasteful number, since it uses less digits than its factorization.

73548009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47416 (or 47413 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 73548009 is about 8576.0135844109. The cubic root of 73548009 is about 418.9771197133.

The spelling of 73548009 in words is "seventy-three million, five hundred forty-eight thousand, nine".