983163931 has 2 divisors, whose sum is σ = 983163932. Its totient is φ = 983163930.

The previous prime is 983163913. The next prime is 983163959. The reversal of 983163931 is 139361389.

It is a happy number.

Together with previous prime (983163913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (139361389) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 983163931 - 2⁵ = 983163899 is a prime.

It is a super-2 number, since 2×983163931² = 1933222630438745522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (983163971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491581965 + 491581966.

It is an arithmetic number, because the mean of its divisors is an integer number (491581966).

Almost surely, 2^983163931 is an apocalyptic number.

983163931 is a deficient number, since it is larger than the sum of its proper divisors (1).

983163931 is an equidigital number, since it uses as much as digits as its factorization.

983163931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 43.

The square root of 983163931 is about 31355.4449976396. Note that the first 3 decimals coincide. The cubic root of 983163931 is about 994.3561842675.

The spelling of 983163931 in words is "nine hundred eighty-three million, one hundred sixty-three thousand, nine hundred thirty-one".