516674657 has 4 divisors (see below), whose sum is σ = 543868080. Its totient is φ = 489481236.

The previous prime is 516674647. The next prime is 516674663. The reversal of 516674657 is 756476615.

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, and also an emirpimes, since its reverse is a distinct semiprime: 756476615 = 5 ⋅151295323.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516674657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516674617) 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, 13596683 + ... + 13596720.

It is an arithmetic number, because the mean of its divisors is an integer number (135967020).

Almost surely, 2^516674657 is an apocalyptic number.

It is an amenable number.

516674657 is a deficient number, since it is larger than the sum of its proper divisors (27193423).

516674657 is a wasteful number, since it uses less digits than its factorization.

516674657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27193422.

The product of its digits is 1058400, while the sum is 47.

The square root of 516674657 is about 22730.4785915299. The cubic root of 516674657 is about 802.4273447355.

The spelling of 516674657 in words is "five hundred sixteen million, six hundred seventy-four thousand, six hundred fifty-seven".