516869679 has 4 divisors (see below), whose sum is σ = 689159576. Its totient is φ = 344579784.

The previous prime is 516869629. The next prime is 516869707. The reversal of 516869679 is 976968615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 516869679 - 2¹³ = 516861487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516869629) 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, 86144944 + ... + 86144949.

It is an arithmetic number, because the mean of its divisors is an integer number (172289894).

Almost surely, 2^516869679 is an apocalyptic number.

516869679 is a deficient number, since it is larger than the sum of its proper divisors (172289897).

516869679 is a wasteful number, since it uses less digits than its factorization.

516869679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172289896.

The product of its digits is 4898880, while the sum is 57.

The square root of 516869679 is about 22734.7680656742. The cubic root of 516869679 is about 802.5282924003.

It can be divided in two parts, 5168 and 69679, that added together give a palindrome (74847).

The spelling of 516869679 in words is "five hundred sixteen million, eight hundred sixty-nine thousand, six hundred seventy-nine".