73730205 has 24 divisors (see below), whose sum is σ = 128463192. Its totient is φ = 39118464.

The previous prime is 73730201. The next prime is 73730221. The reversal of 73730205 is 50203737.

It can be written as a sum of positive squares in 4 ways, for example, as 50168889 + 23561316 = 7083^2 + 4854^2 .

It is not a de Polignac number, because 73730205 - 2² = 73730201 is a prime.

It is a super-2 number, since 2×73730205² = 10872286258684050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73730201) 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 23 ways as a sum of consecutive naturals, for example, 4707 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (5352633).

Almost surely, 2^73730205 is an apocalyptic number.

It is an amenable number.

73730205 is a deficient number, since it is larger than the sum of its proper divisors (54732987).

73730205 is a wasteful number, since it uses less digits than its factorization.

73730205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525 (or 8522 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 27.

The square root of 73730205 is about 8586.6294318551. The cubic root of 73730205 is about 419.3228032508.

The spelling of 73730205 in words is "seventy-three million, seven hundred thirty thousand, two hundred five".