73424809 has 8 divisors (see below), whose sum is σ = 78486912. Its totient is φ = 68518560.

The previous prime is 73424803. The next prime is 73424837. The reversal of 73424809 is 90842437.

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 73424809 - 2¹³ = 73416617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73424803) 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, 37989 + ... + 39874.

It is an arithmetic number, because the mean of its divisors is an integer number (9810864).

Almost surely, 2^73424809 is an apocalyptic number.

It is an amenable number.

73424809 is a deficient number, since it is larger than the sum of its proper divisors (5062103).

73424809 is a wasteful number, since it uses less digits than its factorization.

73424809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77927.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 73424809 is about 8568.8277494649. The cubic root of 73424809 is about 418.7430466210.

The spelling of 73424809 in words is "seventy-three million, four hundred twenty-four thousand, eight hundred nine".