73809845 has 8 divisors (see below), whose sum is σ = 88805376. Its totient is φ = 58892176.

The previous prime is 73809839. The next prime is 73809847. The reversal of 73809845 is 54890837.

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 73809845 - 2⁶ = 73809781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73809796 and 73809805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73809847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17357 + ... + 21186.

It is an arithmetic number, because the mean of its divisors is an integer number (11100672).

Almost surely, 2^73809845 is an apocalyptic number.

It is an amenable number.

73809845 is a deficient number, since it is larger than the sum of its proper divisors (14995531).

73809845 is a wasteful number, since it uses less digits than its factorization.

73809845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38931.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 73809845 is about 8591.2656227124. The cubic root of 73809845 is about 419.4737267038.

The spelling of 73809845 in words is "seventy-three million, eight hundred nine thousand, eight hundred forty-five".