73390517 has 2 divisors, whose sum is σ = 73390518. Its totient is φ = 73390516.

The previous prime is 73390511. The next prime is 73390519. The reversal of 73390517 is 71509337.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73376356 + 14161 = 8566^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 73390517 - 2¹⁶ = 73324981 is a prime.

Together with 73390519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73390511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36695258 + 36695259.

It is an arithmetic number, because the mean of its divisors is an integer number (36695259).

Almost surely, 2^73390517 is an apocalyptic number.

It is an amenable number.

73390517 is a deficient number, since it is larger than the sum of its proper divisors (1).

73390517 is an equidigital number, since it uses as much as digits as its factorization.

73390517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 73390517 is about 8566.8265419582. The cubic root of 73390517 is about 418.6778471659.

The spelling of 73390517 in words is "seventy-three million, three hundred ninety thousand, five hundred seventeen".