73788569 has 2 divisors, whose sum is σ = 73788570. Its totient is φ = 73788568.

The previous prime is 73788563. The next prime is 73788601. The reversal of 73788569 is 96588737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 7772944 = 8125^2 + 2788^2 .

It is a cyclic number.

It is not a de Polignac number, because 73788569 - 2⁴ = 73788553 is a prime.

It is a super-2 number, since 2×73788569² = 10889505830135522, which contains 22 as substring.

It is a Sophie Germain 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 73788569.

It is not a weakly prime, because it can be changed into another prime (73788563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36894284 + 36894285.

It is an arithmetic number, because the mean of its divisors is an integer number (36894285).

Almost surely, 2^73788569 is an apocalyptic number.

It is an amenable number.

73788569 is a deficient number, since it is larger than the sum of its proper divisors (1).

73788569 is an equidigital number, since it uses as much as digits as its factorization.

73788569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The square root of 73788569 is about 8590.0272991417. The cubic root of 73788569 is about 419.4334178052.

The spelling of 73788569 in words is "seventy-three million, seven hundred eighty-eight thousand, five hundred sixty-nine".