73605769 has 2 divisors, whose sum is σ = 73605770. Its totient is φ = 73605768.

The previous prime is 73605703. The next prime is 73605781. The reversal of 73605769 is 96750637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 36542025 = 6088^2 + 6045^2 .

It is an emirp because it is prime and its reverse (96750637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73605769 - 2¹³ = 73597577 is a prime.

It is a super-2 number, since 2×73605769² = 10835618460162722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73602769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36802884 + 36802885.

It is an arithmetic number, because the mean of its divisors is an integer number (36802885).

Almost surely, 2^73605769 is an apocalyptic number.

It is an amenable number.

73605769 is a deficient number, since it is larger than the sum of its proper divisors (1).

73605769 is an equidigital number, since it uses as much as digits as its factorization.

73605769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 43.

The square root of 73605769 is about 8579.3804554874. The cubic root of 73605769 is about 419.0867704772.

The spelling of 73605769 in words is "seventy-three million, six hundred five thousand, seven hundred sixty-nine".