497706669 has 6 divisors (see below), whose sum is σ = 718909646. Its totient is φ = 331804440.

The previous prime is 497706661. The next prime is 497706697. The reversal of 497706669 is 966607794.

It can be written as a sum of positive squares in only one way, i.e., 489515625 + 8191044 = 22125^2 + 2862^2 .

It is not a de Polignac number, because 497706669 - 2³ = 497706661 is a prime.

It is a super-2 number, since 2×497706669² = 495423856734151122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497706661) 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 in 5 ways as a sum of consecutive naturals, for example, 27650362 + ... + 27650379.

Almost surely, 2^497706669 is an apocalyptic number.

It is an amenable number.

497706669 is a deficient number, since it is larger than the sum of its proper divisors (221202977).

497706669 is a wasteful number, since it uses less digits than its factorization.

497706669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55300747 (or 55300744 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 497706669 is about 22309.3403981382. The cubic root of 497706669 is about 792.4851872893.

The spelling of 497706669 in words is "four hundred ninety-seven million, seven hundred six thousand, six hundred sixty-nine".