516340039 has 4 divisors (see below), whose sum is σ = 517039480. Its totient is φ = 515640600.

The previous prime is 516339973. The next prime is 516340043. The reversal of 516340039 is 930043615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930043615 = 5 ⋅186008723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-516340039 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 (516340049) 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, 348612 + ... + 350089.

It is an arithmetic number, because the mean of its divisors is an integer number (129259870).

Almost surely, 2^516340039 is an apocalyptic number.

516340039 is a deficient number, since it is larger than the sum of its proper divisors (699441).

516340039 is an equidigital number, since it uses as much as digits as its factorization.

516340039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699440.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 516340039 is about 22723.1168416659. The cubic root of 516340039 is about 802.2540799189.

The spelling of 516340039 in words is "five hundred sixteen million, three hundred forty thousand, thirty-nine".