523493983 has 2 divisors, whose sum is σ = 523493984. Its totient is φ = 523493982.

The previous prime is 523493963. The next prime is 523494001. The reversal of 523493983 is 389394325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523493983 - 2²¹ = 521396831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523493923) 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, 261746991 + 261746992.

It is an arithmetic number, because the mean of its divisors is an integer number (261746992).

Almost surely, 2^523493983 is an apocalyptic number.

523493983 is a deficient number, since it is larger than the sum of its proper divisors (1).

523493983 is an equidigital number, since it uses as much as digits as its factorization.

523493983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 46.

The square root of 523493983 is about 22879.9908872359. The cubic root of 523493983 is about 805.9422029787.

The spelling of 523493983 in words is "five hundred twenty-three million, four hundred ninety-three thousand, nine hundred eighty-three".