75897313 has 2 divisors, whose sum is σ = 75897314. Its totient is φ = 75897312.

The previous prime is 75897293. The next prime is 75897317. The reversal of 75897313 is 31379857.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71520849 + 4376464 = 8457^2 + 2092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75897313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75897313.

It is not a weakly prime, because it can be changed into another prime (75897317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37948656 + 37948657.

It is an arithmetic number, because the mean of its divisors is an integer number (37948657).

Almost surely, 2^75897313 is an apocalyptic number.

It is an amenable number.

75897313 is a deficient number, since it is larger than the sum of its proper divisors (1).

75897313 is an equidigital number, since it uses as much as digits as its factorization.

75897313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 43.

The square root of 75897313 is about 8711.9063929774. The cubic root of 75897313 is about 423.3914987486.

The spelling of 75897313 in words is "seventy-five million, eight hundred ninety-seven thousand, three hundred thirteen".