75605317 has 2 divisors, whose sum is σ = 75605318. Its totient is φ = 75605316.

The previous prime is 75605269. The next prime is 75605339. The reversal of 75605317 is 71350657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66569281 + 9036036 = 8159^2 + 3006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75605317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75605357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37802658 + 37802659.

It is an arithmetic number, because the mean of its divisors is an integer number (37802659).

Almost surely, 2^75605317 is an apocalyptic number.

It is an amenable number.

75605317 is a deficient number, since it is larger than the sum of its proper divisors (1).

75605317 is an equidigital number, since it uses as much as digits as its factorization.

75605317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 75605317 is about 8695.1317988861. The cubic root of 75605317 is about 422.8478365189.

The spelling of 75605317 in words is "seventy-five million, six hundred five thousand, three hundred seventeen".