516646869 has 8 divisors (see below), whose sum is σ = 696602880. Its totient is φ = 340561056.

The previous prime is 516646859. The next prime is 516646901. The reversal of 516646869 is 968646615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 516646869 - 2⁴ = 516646853 is a prime.

It is a super-2 number, since 2×516646869² = 533847974495006322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516646829) 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 7 ways as a sum of consecutive naturals, for example, 967237 + ... + 967770.

It is an arithmetic number, because the mean of its divisors is an integer number (87075360).

Almost surely, 2^516646869 is an apocalyptic number.

It is an amenable number.

516646869 is a deficient number, since it is larger than the sum of its proper divisors (179956011).

516646869 is a wasteful number, since it uses less digits than its factorization.

516646869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935099.

The product of its digits is 1866240, while the sum is 51.

The square root of 516646869 is about 22729.8673335328. The cubic root of 516646869 is about 802.4129589897.

The spelling of 516646869 in words is "five hundred sixteen million, six hundred forty-six thousand, eight hundred sixty-nine".