73734309 has 12 divisors (see below), whose sum is σ = 116187552. Its totient is φ = 44687400.

The previous prime is 73734263. The next prime is 73734317. The reversal of 73734309 is 90343737.

It is not a de Polignac number, because 73734309 - 2⁷ = 73734181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73734319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372297 + ... + 372494.

It is an arithmetic number, because the mean of its divisors is an integer number (9682296).

Almost surely, 2^73734309 is an apocalyptic number.

It is an amenable number.

73734309 is a deficient number, since it is larger than the sum of its proper divisors (42453243).

73734309 is a wasteful number, since it uses less digits than its factorization.

73734309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744808 (or 744805 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 36.

The square root of 73734309 is about 8586.8684047212. The cubic root of 73734309 is about 419.3305832773.

The spelling of 73734309 in words is "seventy-three million, seven hundred thirty-four thousand, three hundred nine".