516439469 has 12 divisors (see below), whose sum is σ = 646968924. Its totient is φ = 408610944.

The previous prime is 516439463. The next prime is 516439471. The reversal of 516439469 is 964934615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 308704900 + 207734569 = 17570^2 + 14413^2 .

It is not a de Polignac number, because 516439469 - 2¹² = 516435373 is a prime.

It is a super-2 number, since 2×516439469² = 533419450282003922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516439463) 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 11 ways as a sum of consecutive naturals, for example, 404732 + ... + 406005.

It is an arithmetic number, because the mean of its divisors is an integer number (53914077).

Almost surely, 2^516439469 is an apocalyptic number.

It is an amenable number.

516439469 is a deficient number, since it is larger than the sum of its proper divisors (130529455).

516439469 is a wasteful number, since it uses less digits than its factorization.

516439469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810764 (or 810757 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The square root of 516439469 is about 22725.3045964185. The cubic root of 516439469 is about 802.3055724738.

The spelling of 516439469 in words is "five hundred sixteen million, four hundred thirty-nine thousand, four hundred sixty-nine".