913708489 has 2 divisors, whose sum is σ = 913708490. Its totient is φ = 913708488.

The previous prime is 913708483. The next prime is 913708501. The reversal of 913708489 is 984807319.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 471237264 + 442471225 = 21708^2 + 21035^2 .

It is an emirp because it is prime and its reverse (984807319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 913708489 - 2²⁹ = 376837577 is a prime.

It is not a weakly prime, because it can be changed into another prime (913708483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456854244 + 456854245.

It is an arithmetic number, because the mean of its divisors is an integer number (456854245).

Almost surely, 2^913708489 is an apocalyptic number.

It is an amenable number.

913708489 is a deficient number, since it is larger than the sum of its proper divisors (1).

913708489 is an equidigital number, since it uses as much as digits as its factorization.

913708489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 913708489 is about 30227.6113677545. The cubic root of 913708489 is about 970.3667047989.

The spelling of 913708489 in words is "nine hundred thirteen million, seven hundred eight thousand, four hundred eighty-nine".