497279 has 2 divisors, whose sum is σ = 497280. Its totient is φ = 497278.

The previous prime is 497269. The next prime is 497281. The reversal of 497279 is 972794.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497279 is a prime.

It is a Sophie Germain prime.

Together with 497281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248639 + 248640.

It is an arithmetic number, because the mean of its divisors is an integer number (248640).

2⁴⁹⁷²⁷⁹ is an apocalyptic number.

497279 is a deficient number, since it is larger than the sum of its proper divisors (1).

497279 is an equidigital number, since it uses as much as digits as its factorization.

497279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 38.

The square root of 497279 is about 705.1801188349. The cubic root of 497279 is about 79.2258133557.

The spelling of 497279 in words is "four hundred ninety-seven thousand, two hundred seventy-nine".