981480593 has 2 divisors, whose sum is σ = 981480594. Its totient is φ = 981480592.

The previous prime is 981480589. The next prime is 981480607. The reversal of 981480593 is 395084189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960256144 + 21224449 = 30988^2 + 4607^2 .

It is an emirp because it is prime and its reverse (395084189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 981480593 - 2² = 981480589 is a prime.

It is not a weakly prime, because it can be changed into another prime (981480523) 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, 490740296 + 490740297.

It is an arithmetic number, because the mean of its divisors is an integer number (490740297).

Almost surely, 2^981480593 is an apocalyptic number.

It is an amenable number.

981480593 is a deficient number, since it is larger than the sum of its proper divisors (1).

981480593 is an equidigital number, since it uses as much as digits as its factorization.

981480593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 981480593 is about 31328.5906641202. The cubic root of 981480593 is about 993.7883597497.

The spelling of 981480593 in words is "nine hundred eighty-one million, four hundred eighty thousand, five hundred ninety-three".