73399009 has 8 divisors (see below), whose sum is σ = 76662720. Its totient is φ = 70202736.

The previous prime is 73398991. The next prime is 73399021. The reversal of 73399009 is 90099337.

It is a happy number.

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 73399009 - 2¹⁷ = 73267937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73399069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14629 + ... + 18994.

It is an arithmetic number, because the mean of its divisors is an integer number (9582840).

Almost surely, 2^73399009 is an apocalyptic number.

It is an amenable number.

73399009 is a deficient number, since it is larger than the sum of its proper divisors (3263711).

73399009 is a wasteful number, since it uses less digits than its factorization.

73399009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33719.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 73399009 is about 8567.3221603953. The cubic root of 73399009 is about 418.6939949159.

The spelling of 73399009 in words is "seventy-three million, three hundred ninety-nine thousand, nine".