73238289 has 8 divisors (see below), whose sum is σ = 98157792. Its totient is φ = 48572160.

The previous prime is 73238273. The next prime is 73238317. The reversal of 73238289 is 98283237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73238289 - 2⁴ = 73238273 is a prime.

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 73238289.

It is not an unprimeable number, because it can be changed into a prime (73238219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62667 + ... + 63824.

It is an arithmetic number, because the mean of its divisors is an integer number (12269724).

Almost surely, 2^73238289 is an apocalyptic number.

It is an amenable number.

73238289 is a deficient number, since it is larger than the sum of its proper divisors (24919503).

73238289 is a wasteful number, since it uses less digits than its factorization.

73238289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126687.

The product of its digits is 145152, while the sum is 42.

The square root of 73238289 is about 8557.9371930390. The cubic root of 73238289 is about 418.3881702830.

The spelling of 73238289 in words is "seventy-three million, two hundred thirty-eight thousand, two hundred eighty-nine".