73745289 has 32 divisors (see below), whose sum is σ = 118992000. Its totient is φ = 44960832.

The previous prime is 73745267. The next prime is 73745293. The reversal of 73745289 is 98254737.

It is not a de Polignac number, because 73745289 - 2¹² = 73741193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73745299) 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 31 ways as a sum of consecutive naturals, for example, 12399 + ... + 17355.

It is an arithmetic number, because the mean of its divisors is an integer number (3718500).

Almost surely, 2^73745289 is an apocalyptic number.

It is an amenable number.

73745289 is a deficient number, since it is larger than the sum of its proper divisors (45246711).

73745289 is a wasteful number, since it uses less digits than its factorization.

73745289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5014 (or 5008 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 73745289 is about 8587.5077292542. The cubic root of 73745289 is about 419.3513968413.

The spelling of 73745289 in words is "seventy-three million, seven hundred forty-five thousand, two hundred eighty-nine".