516497969 has 6 divisors (see below), whose sum is σ = 559284966. Its totient is φ = 476767200.

The previous prime is 516497963. The next prime is 516497981. The reversal of 516497969 is 969794615.

It can be written as a sum of positive squares in 3 ways, for example, as 63361600 + 453136369 = 7960^2 + 21287^2 .

It is not a de Polignac number, because 516497969 - 2⁴ = 516497953 is a prime.

It is a super-2 number, since 2×516497969² = 533540303962249922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516497963) 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 in 5 ways as a sum of consecutive naturals, for example, 1527932 + ... + 1528269.

It is an arithmetic number, because the mean of its divisors is an integer number (93214161).

Almost surely, 2^516497969 is an apocalyptic number.

It is an amenable number.

516497969 is a deficient number, since it is larger than the sum of its proper divisors (42786997).

516497969 is a wasteful number, since it uses less digits than its factorization.

516497969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056227 (or 3056214 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 56.

The square root of 516497969 is about 22726.5916714319. The cubic root of 516497969 is about 802.3358652165.

The spelling of 516497969 in words is "five hundred sixteen million, four hundred ninety-seven thousand, nine hundred sixty-nine".