983118497 has 2 divisors, whose sum is σ = 983118498. Its totient is φ = 983118496.

The previous prime is 983118491. The next prime is 983118529. The reversal of 983118497 is 794811389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725548096 + 257570401 = 26936^2 + 16049^2 .

It is an emirp because it is prime and its reverse (794811389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983118497 - 2⁴ = 983118481 is a prime.

It is not a weakly prime, because it can be changed into another prime (983118491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491559248 + 491559249.

It is an arithmetic number, because the mean of its divisors is an integer number (491559249).

Almost surely, 2^983118497 is an apocalyptic number.

It is an amenable number.

983118497 is a deficient number, since it is larger than the sum of its proper divisors (1).

983118497 is an equidigital number, since it uses as much as digits as its factorization.

983118497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 50.

The square root of 983118497 is about 31354.7204899039. The cubic root of 983118497 is about 994.3408669593.

The spelling of 983118497 in words is "nine hundred eighty-three million, one hundred eighteen thousand, four hundred ninety-seven".