73894789 has 2 divisors, whose sum is σ = 73894790. Its totient is φ = 73894788.

The previous prime is 73894771. The next prime is 73894853. The reversal of 73894789 is 98749837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47196900 + 26697889 = 6870^2 + 5167^2 .

It is an emirp because it is prime and its reverse (98749837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73894789 - 2⁹ = 73894277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73891789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36947394 + 36947395.

It is an arithmetic number, because the mean of its divisors is an integer number (36947395).

Almost surely, 2^73894789 is an apocalyptic number.

It is an amenable number.

73894789 is a deficient number, since it is larger than the sum of its proper divisors (1).

73894789 is an equidigital number, since it uses as much as digits as its factorization.

73894789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 55.

The square root of 73894789 is about 8596.2078267106. The cubic root of 73894789 is about 419.6345820117.

The spelling of 73894789 in words is "seventy-three million, eight hundred ninety-four thousand, seven hundred eighty-nine".