73730001 has 4 divisors (see below), whose sum is σ = 98306672. Its totient is φ = 49153332.

The previous prime is 73729987. The next prime is 73730017. The reversal of 73730001 is 10003737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10003737 = 3 ⋅3334579.

It is not a de Polignac number, because 73730001 - 2¹⁴ = 73713617 is a prime.

It is a super-2 number, since 2×73730001² = 10872226094920002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73730001.

It is not an unprimeable number, because it can be changed into a prime (73730201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12288331 + ... + 12288336.

It is an arithmetic number, because the mean of its divisors is an integer number (24576668).

Almost surely, 2^73730001 is an apocalyptic number.

It is an amenable number.

73730001 is a deficient number, since it is larger than the sum of its proper divisors (24576671).

73730001 is a wasteful number, since it uses less digits than its factorization.

73730001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24576670.

The product of its (nonzero) digits is 441, while the sum is 21.

The square root of 73730001 is about 8586.6175529134. The cubic root of 73730001 is about 419.3224165168.

Adding to 73730001 its reverse (10003737), we get a palindrome (83733738).

The spelling of 73730001 in words is "seventy-three million, seven hundred thirty thousand, one".