73645345 has 8 divisors (see below), whose sum is σ = 88539264. Its totient is φ = 58806384.

The previous prime is 73645339. The next prime is 73645357. The reversal of 73645345 is 54354637.

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 73645345 - 2¹⁵ = 73612577 is a prime.

It is a Duffinian 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, 10729 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (11067408).

Almost surely, 2^73645345 is an apocalyptic number.

It is an amenable number.

73645345 is a deficient number, since it is larger than the sum of its proper divisors (14893919).

73645345 is a wasteful number, since it uses less digits than its factorization.

73645345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27479.

The product of its digits is 151200, while the sum is 37.

The square root of 73645345 is about 8581.6866057903. The cubic root of 73645345 is about 419.1618678804.

The spelling of 73645345 in words is "seventy-three million, six hundred forty-five thousand, three hundred forty-five".