497385769 has 2 divisors, whose sum is σ = 497385770. Its totient is φ = 497385768.

The previous prime is 497385767. The next prime is 497385803. The reversal of 497385769 is 967583794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 432099369 + 65286400 = 20787^2 + 8080^2 .

It is a cyclic number.

It is not a de Polignac number, because 497385769 - 2¹ = 497385767 is a prime.

It is a super-2 number, since 2×497385769² = 494785206407442722, which contains 22 as substring.

Together with 497385767, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (497385767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248692884 + 248692885.

It is an arithmetic number, because the mean of its divisors is an integer number (248692885).

Almost surely, 2^497385769 is an apocalyptic number.

It is an amenable number.

497385769 is a deficient number, since it is larger than the sum of its proper divisors (1).

497385769 is an equidigital number, since it uses as much as digits as its factorization.

497385769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 58.

The square root of 497385769 is about 22302.1471836234. The cubic root of 497385769 is about 792.3148304722.

The spelling of 497385769 in words is "four hundred ninety-seven million, three hundred eighty-five thousand, seven hundred sixty-nine".