73884889 has 4 divisors (see below), whose sum is σ = 79568356. Its totient is φ = 68201424.

The previous prime is 73884883. The next prime is 73884929. The reversal of 73884889 is 98848837.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4862025 + 69022864 = 2205^2 + 8308^2 .

It is a cyclic number.

It is not a de Polignac number, because 73884889 - 2¹³ = 73876697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73884883) 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, 2841714 + ... + 2841739.

It is an arithmetic number, because the mean of its divisors is an integer number (19892089).

Almost surely, 2^73884889 is an apocalyptic number.

It is an amenable number.

73884889 is a deficient number, since it is larger than the sum of its proper divisors (5683467).

73884889 is a wasteful number, since it uses less digits than its factorization.

73884889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683466.

The product of its digits is 3096576, while the sum is 55.

The square root of 73884889 is about 8595.6319721123. The cubic root of 73884889 is about 419.6158410966.

The spelling of 73884889 in words is "seventy-three million, eight hundred eighty-four thousand, eight hundred eighty-nine".