73500809 has 16 divisors (see below), whose sum is σ = 80725248. Its totient is φ = 66646272.

The previous prime is 73500799. The next prime is 73500821. The reversal of 73500809 is 90800537.

It is a cyclic number.

It is not a de Polignac number, because 73500809 - 2⁴ = 73500793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73500829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52847 + ... + 54219.

It is an arithmetic number, because the mean of its divisors is an integer number (5045328).

Almost surely, 2^73500809 is an apocalyptic number.

It is an amenable number.

73500809 is a deficient number, since it is larger than the sum of its proper divisors (7224439).

73500809 is a wasteful number, since it uses less digits than its factorization.

73500809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 73500809 is about 8573.2612814494. The cubic root of 73500809 is about 418.8874732713.

The spelling of 73500809 in words is "seventy-three million, five hundred thousand, eight hundred nine".