516319693 has 4 divisors (see below), whose sum is σ = 526061628. Its totient is φ = 506577760.

The previous prime is 516319681. The next prime is 516319703. The reversal of 516319693 is 396913615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 406949929 + 109369764 = 20173^2 + 10458^2 .

It is a cyclic number.

It is not a de Polignac number, because 516319693 - 2¹³ = 516311501 is a prime.

It is a super-2 number, since 2×516319693² = 533172050759228498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516319613) 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 3 ways as a sum of consecutive naturals, for example, 4870888 + ... + 4870993.

It is an arithmetic number, because the mean of its divisors is an integer number (131515407).

Almost surely, 2^516319693 is an apocalyptic number.

516319693 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

516319693 is a deficient number, since it is larger than the sum of its proper divisors (9741935).

516319693 is an equidigital number, since it uses as much as digits as its factorization.

516319693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741934.

The product of its digits is 131220, while the sum is 43.

The square root of 516319693 is about 22722.6691433907. The cubic root of 516319693 is about 802.2435423695.

The spelling of 516319693 in words is "five hundred sixteen million, three hundred nineteen thousand, six hundred ninety-three".