73500445 has 4 divisors (see below), whose sum is σ = 88200540. Its totient is φ = 58800352.

The previous prime is 73500431. The next prime is 73500461. The reversal of 73500445 is 54400537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54400537 = 59 ⋅922043.

It can be written as a sum of positive squares in 2 ways, for example, as 42797764 + 30702681 = 6542^2 + 5541^2 .

It is a cyclic number.

It is not a de Polignac number, because 73500445 - 2¹⁹ = 72976157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7350040 + ... + 7350049.

It is an arithmetic number, because the mean of its divisors is an integer number (22050135).

Almost surely, 2^73500445 is an apocalyptic number.

It is an amenable number.

73500445 is a deficient number, since it is larger than the sum of its proper divisors (14700095).

73500445 is a wasteful number, since it uses less digits than its factorization.

73500445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14700094.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 73500445 is about 8573.2400526289. The cubic root of 73500445 is about 418.8867817810.

The spelling of 73500445 in words is "seventy-three million, five hundred thousand, four hundred forty-five".