73805720 has 16 divisors (see below), whose sum is σ = 166062960. Its totient is φ = 29522272.

The previous prime is 73805681. The next prime is 73805723. The reversal of 73805720 is 2750837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73805723) 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 3 ways as a sum of consecutive naturals, for example, 922532 + ... + 922611.

It is an arithmetic number, because the mean of its divisors is an integer number (10378935).

Almost surely, 2^73805720 is an apocalyptic number.

It is an amenable number.

73805720 is an abundant number, since it is smaller than the sum of its proper divisors (92257240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73805720 is a wasteful number, since it uses less digits than its factorization.

73805720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845154 (or 1845150 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 73805720 is about 8591.0255499562. The cubic root of 73805720 is about 419.4659122026.

The spelling of 73805720 in words is "seventy-three million, eight hundred five thousand, seven hundred twenty".