516899693 has 4 divisors (see below), whose sum is σ = 544104960. Its totient is φ = 489694428.

The previous prime is 516899687. The next prime is 516899701. The reversal of 516899693 is 396998615.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 516899693 - 2⁸ = 516899437 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 (516899293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13602605 + ... + 13602642.

It is an arithmetic number, because the mean of its divisors is an integer number (136026240).

Almost surely, 2^516899693 is an apocalyptic number.

It is an amenable number.

516899693 is a deficient number, since it is larger than the sum of its proper divisors (27205267).

516899693 is a wasteful number, since it uses less digits than its factorization.

516899693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27205266.

The product of its digits is 3149280, while the sum is 56.

The square root of 516899693 is about 22735.4281463974. The cubic root of 516899693 is about 802.5438260502.

The spelling of 516899693 in words is "five hundred sixteen million, eight hundred ninety-nine thousand, six hundred ninety-three".