917700013 has 2 divisors, whose sum is σ = 917700014. Its totient is φ = 917700012.

The previous prime is 917699987. The next prime is 917700029. The reversal of 917700013 is 310007719.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648313444 + 269386569 = 25462^2 + 16413^2 .

It is a cyclic number.

It is not a de Polignac number, because 917700013 - 2⁹ = 917699501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (917700053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458850006 + 458850007.

It is an arithmetic number, because the mean of its divisors is an integer number (458850007).

Almost surely, 2^917700013 is an apocalyptic number.

It is an amenable number.

917700013 is a deficient number, since it is larger than the sum of its proper divisors (1).

917700013 is an equidigital number, since it uses as much as digits as its factorization.

917700013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 917700013 is about 30293.5638874002. The cubic root of 917700013 is about 971.7776637705. Note that the first 3 decimals are identical.

The spelling of 917700013 in words is "nine hundred seventeen million, seven hundred thousand, thirteen".