73168789 has 2 divisors, whose sum is σ = 73168790. Its totient is φ = 73168788.

The previous prime is 73168783. The next prime is 73168811. The reversal of 73168789 is 98786137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36663025 + 36505764 = 6055^2 + 6042^2 .

It is a cyclic number.

It is not a de Polignac number, because 73168789 - 2⁷ = 73168661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73168783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36584394 + 36584395.

It is an arithmetic number, because the mean of its divisors is an integer number (36584395).

Almost surely, 2^73168789 is an apocalyptic number.

It is an amenable number.

73168789 is a deficient number, since it is larger than the sum of its proper divisors (1).

73168789 is an equidigital number, since it uses as much as digits as its factorization.

73168789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 73168789 is about 8553.8756712966. The cubic root of 73168789 is about 418.2557842456.

The spelling of 73168789 in words is "seventy-three million, one hundred sixty-eight thousand, seven hundred eighty-nine".