746664593 has 2 divisors, whose sum is σ = 746664594. Its totient is φ = 746664592.

The previous prime is 746664559. The next prime is 746664601. The reversal of 746664593 is 395466647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518563984 + 228100609 = 22772^2 + 15103^2 .

It is an emirp because it is prime and its reverse (395466647) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-746664593 is a prime.

It is not a weakly prime, because it can be changed into another prime (746664533) 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, 373332296 + 373332297.

It is an arithmetic number, because the mean of its divisors is an integer number (373332297).

Almost surely, 2^746664593 is an apocalyptic number.

It is an amenable number.

746664593 is a deficient number, since it is larger than the sum of its proper divisors (1).

746664593 is an equidigital number, since it uses as much as digits as its factorization.

746664593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 50.

The square root of 746664593 is about 27325.1640983179. The cubic root of 746664593 is about 907.2114422800.

The spelling of 746664593 in words is "seven hundred forty-six million, six hundred sixty-four thousand, five hundred ninety-three".