917513983 has 2 divisors, whose sum is σ = 917513984. Its totient is φ = 917513982.

The previous prime is 917513969. The next prime is 917514001. The reversal of 917513983 is 389315719.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 917513983 - 2²⁵ = 883959551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (917513923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458756991 + 458756992.

It is an arithmetic number, because the mean of its divisors is an integer number (458756992).

Almost surely, 2^917513983 is an apocalyptic number.

917513983 is a deficient number, since it is larger than the sum of its proper divisors (1).

917513983 is an equidigital number, since it uses as much as digits as its factorization.

917513983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The square root of 917513983 is about 30290.4932775945. The cubic root of 917513983 is about 971.7119952466.

The spelling of 917513983 in words is "nine hundred seventeen million, five hundred thirteen thousand, nine hundred eighty-three".