495619 has 2 divisors, whose sum is σ = 495620. Its totient is φ = 495618.

The previous prime is 495617. The next prime is 495629. The reversal of 495619 is 916594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 495619 - 2¹ = 495617 is a prime.

It is a super-2 number, since 2×495619² = 491276386322, which contains 22 as substring.

Together with 495617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (495611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247809 + 247810.

It is an arithmetic number, because the mean of its divisors is an integer number (247810).

2⁴⁹⁵⁶¹⁹ is an apocalyptic number.

495619 is a deficient number, since it is larger than the sum of its proper divisors (1).

495619 is an equidigital number, since it uses as much as digits as its factorization.

495619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 495619 is about 704.0021306786. The cubic root of 495619 is about 79.1375587665.

The spelling of 495619 in words is "four hundred ninety-five thousand, six hundred nineteen".