493939 has 2 divisors, whose sum is σ = 493940. Its totient is φ = 493938.

The previous prime is 493937. The next prime is 493967. The reversal of 493939 is 939394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493939 - 2¹ = 493937 is a prime.

Together with 493937, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 493898 and 493907.

It is not a weakly prime, because it can be changed into another prime (493931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246969 + 246970.

It is an arithmetic number, because the mean of its divisors is an integer number (246970).

2⁴⁹³⁹³⁹ is an apocalyptic number.

493939 is a deficient number, since it is larger than the sum of its proper divisors (1).

493939 is an equidigital number, since it uses as much as digits as its factorization.

493939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26244, while the sum is 37.

The square root of 493939 is about 702.8079396250. The cubic root of 493939 is about 79.0480400006.

The spelling of 493939 in words is "four hundred ninety-three thousand, nine hundred thirty-nine".