73456609 has 8 divisors (see below), whose sum is σ = 77861088. Its totient is φ = 69061440.

The previous prime is 73456601. The next prime is 73456619. The reversal of 73456609 is 90665437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73456609 - 2³ = 73456601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73456601) 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 7 ways as a sum of consecutive naturals, for example, 20274 + ... + 23620.

It is an arithmetic number, because the mean of its divisors is an integer number (9732636).

Almost surely, 2^73456609 is an apocalyptic number.

It is an amenable number.

73456609 is a deficient number, since it is larger than the sum of its proper divisors (4404479).

73456609 is a wasteful number, since it uses less digits than its factorization.

73456609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 73456609 is about 8570.6831116312. The cubic root of 73456609 is about 418.8034898924.

The spelling of 73456609 in words is "seventy-three million, four hundred fifty-six thousand, six hundred nine".