516928969 has 4 divisors (see below), whose sum is σ = 516987796. Its totient is φ = 516870144.

The previous prime is 516928957. The next prime is 516929003. The reversal of 516928969 is 969829615.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 454329225 + 62599744 = 21315^2 + 7912^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516928969 is a prime.

It is a super-2 number, since 2×516928969² = 534431117982805922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516928949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13284 + ... + 34789.

It is an arithmetic number, because the mean of its divisors is an integer number (129246949).

Almost surely, 2^516928969 is an apocalyptic number.

It is an amenable number.

516928969 is a deficient number, since it is larger than the sum of its proper divisors (58827).

516928969 is a wasteful number, since it uses less digits than its factorization.

516928969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58826.

The product of its digits is 2099520, while the sum is 55.

The square root of 516928969 is about 22736.0719782464. The cubic root of 516928969 is about 802.5589771713.

The spelling of 516928969 in words is "five hundred sixteen million, nine hundred twenty-eight thousand, nine hundred sixty-nine".