497869969 has 9 divisors (see below), whose sum is σ = 508649169. Its totient is φ = 487315920.

The previous prime is 497869961. The next prime is 497869987. The reversal of 497869969 is 969968794.

The square root of 497869969 is 22313.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 109307025 + 388562944 = 10455^2 + 19712^2 .

It is not a de Polignac number, because 497869969 - 2³ = 497869961 is a prime.

It is a super-2 number, since 2×497869969² = 495749012064121922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497869961) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1182379 + ... + 1182799.

Almost surely, 2^497869969 is an apocalyptic number.

497869969 is the 22313-rd square number.

497869969 is the 11157-th centered octagonal number.

It is an amenable number.

497869969 is a deficient number, since it is larger than the sum of its proper divisors (10779200).

497869969 is an frugal number, since it uses more digits than its factorization.

497869969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948 (or 474 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 67.

The cubic root of 497869969 is about 792.5718505711.

It can be divided in two parts, 4978 and 69969, that added together give a palindrome (74947).

The spelling of 497869969 in words is "four hundred ninety-seven million, eight hundred sixty-nine thousand, nine hundred sixty-nine".