73809445 has 8 divisors (see below), whose sum is σ = 88736544. Its totient is φ = 58937424.

The previous prime is 73809409. The next prime is 73809473. The reversal of 73809445 is 54490837.

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 73809445 - 2¹³ = 73801253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73809398 and 73809407.

It is a congruent number.

It is an unprimeable number.

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, 10759 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (11092068).

Almost surely, 2^73809445 is an apocalyptic number.

It is an amenable number.

73809445 is a deficient number, since it is larger than the sum of its proper divisors (14927099).

73809445 is a wasteful number, since it uses less digits than its factorization.

73809445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27539.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 73809445 is about 8591.2423432237. The cubic root of 73809445 is about 419.4729689467.

The spelling of 73809445 in words is "seventy-three million, eight hundred nine thousand, four hundred forty-five".