73989398 has 8 divisors (see below), whose sum is σ = 126838992. Its totient is φ = 31709736.

The previous prime is 73989397. The next prime is 73989403. The reversal of 73989398 is 89398937.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73989397) 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, 2642465 + ... + 2642492.

It is an arithmetic number, because the mean of its divisors is an integer number (15854874).

Almost surely, 2^73989398 is an apocalyptic number.

73989398 is a deficient number, since it is larger than the sum of its proper divisors (52849594).

73989398 is a wasteful number, since it uses less digits than its factorization.

73989398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284966.

The product of its digits is 2939328, while the sum is 56.

The square root of 73989398 is about 8601.7090162363. The cubic root of 73989398 is about 419.8135945300.

The spelling of 73989398 in words is "seventy-three million, nine hundred eighty-nine thousand, three hundred ninety-eight".