497479987 has 2 divisors, whose sum is σ = 497479988. Its totient is φ = 497479986.

The previous prime is 497479981. The next prime is 497480003. The reversal of 497479987 is 789974794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 497479987 - 2³ = 497479979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (497479981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248739993 + 248739994.

It is an arithmetic number, because the mean of its divisors is an integer number (248739994).

Almost surely, 2^497479987 is an apocalyptic number.

497479987 is a deficient number, since it is larger than the sum of its proper divisors (1).

497479987 is an equidigital number, since it uses as much as digits as its factorization.

497479987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32006016, while the sum is 64.

The square root of 497479987 is about 22304.2593914257. The cubic root of 497479987 is about 792.3648557646.

The spelling of 497479987 in words is "four hundred ninety-seven million, four hundred seventy-nine thousand, nine hundred eighty-seven".