945666983 has 2 divisors, whose sum is σ = 945666984. Its totient is φ = 945666982.

The previous prime is 945666971. The next prime is 945666989. The reversal of 945666983 is 389666549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 945666983 - 2¹⁴ = 945650599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945666989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472833491 + 472833492.

It is an arithmetic number, because the mean of its divisors is an integer number (472833492).

Almost surely, 2^945666983 is an apocalyptic number.

945666983 is a deficient number, since it is larger than the sum of its proper divisors (1).

945666983 is an equidigital number, since it uses as much as digits as its factorization.

945666983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 56.

The square root of 945666983 is about 30751.6988636400. The cubic root of 945666983 is about 981.5507113135.

It can be divided in two parts, 945666 and 983, that added together give a palindrome (946649).

The spelling of 945666983 in words is "nine hundred forty-five million, six hundred sixty-six thousand, nine hundred eighty-three".