73580909 has 4 divisors (see below), whose sum is σ = 73604160. Its totient is φ = 73557660.

The previous prime is 73580893. The next prime is 73580929. The reversal of 73580909 is 90908537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73580909 - 2⁴ = 73580893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73580929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957 + ... + 13514.

It is an arithmetic number, because the mean of its divisors is an integer number (18401040).

Almost surely, 2^73580909 is an apocalyptic number.

It is an amenable number.

73580909 is a deficient number, since it is larger than the sum of its proper divisors (23251).

73580909 is a wasteful number, since it uses less digits than its factorization.

73580909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23250.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 73580909 is about 8577.9315105683. The cubic root of 73580909 is about 419.0395836402.

The spelling of 73580909 in words is "seventy-three million, five hundred eighty thousand, nine hundred nine".