983920241917 has 2 divisors, whose sum is σ = 983920241918. Its totient is φ = 983920241916.

The previous prime is 983920241903. The next prime is 983920241923. The reversal of 983920241917 is 719142029389.

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., 776973494521 + 206946747396 = 881461^2 + 454914^2 .

It is a cyclic number.

It is not a de Polignac number, because 983920241917 - 2²⁷ = 983786024189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983920241957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491960120958 + 491960120959.

It is an arithmetic number, because the mean of its divisors is an integer number (491960120959).

Almost surely, 2^983920241917 is an apocalyptic number.

It is an amenable number.

983920241917 is a deficient number, since it is larger than the sum of its proper divisors (1).

983920241917 is an equidigital number, since it uses as much as digits as its factorization.

983920241917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 983920241917 in words is "nine hundred eighty-three billion, nine hundred twenty million, two hundred forty-one thousand, nine hundred seventeen".