983118491 has 2 divisors, whose sum is σ = 983118492. Its totient is φ = 983118490.

The previous prime is 983118481. The next prime is 983118497. The reversal of 983118491 is 194811389.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 983118491 - 2⁶ = 983118427 is a prime.

It is a super-2 number, since 2×983118491² = 1933043934692234162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (983118497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491559245 + 491559246.

It is an arithmetic number, because the mean of its divisors is an integer number (491559246).

Almost surely, 2^983118491 is an apocalyptic number.

983118491 is a deficient number, since it is larger than the sum of its proper divisors (1).

983118491 is an equidigital number, since it uses as much as digits as its factorization.

983118491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 44.

The square root of 983118491 is about 31354.7203942245. The cubic root of 983118491 is about 994.3408649365.

The spelling of 983118491 in words is "nine hundred eighty-three million, one hundred eighteen thousand, four hundred ninety-one".