493979 has 2 divisors, whose sum is σ = 493980. Its totient is φ = 493978.

The previous prime is 493973. The next prime is 493993. The reversal of 493979 is 979394.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493979 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (493973) 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, 246989 + 246990.

It is an arithmetic number, because the mean of its divisors is an integer number (246990).

2⁴⁹³⁹⁷⁹ is an apocalyptic number.

493979 is a deficient number, since it is larger than the sum of its proper divisors (1).

493979 is an equidigital number, since it uses as much as digits as its factorization.

493979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 493979 is about 702.8363963256. The cubic root of 493979 is about 79.0501737568.

The spelling of 493979 in words is "four hundred ninety-three thousand, nine hundred seventy-nine".