516003394 has 4 divisors (see below), whose sum is σ = 774005094. Its totient is φ = 258001696.

The previous prime is 516003377. The next prime is 516003403. The reversal of 516003394 is 493300615.

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

It can be written as a sum of positive squares in only one way, i.e., 506925225 + 9078169 = 22515^2 + 3013^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129000847 + ... + 129000850.

Almost surely, 2^516003394 is an apocalyptic number.

516003394 is a deficient number, since it is larger than the sum of its proper divisors (258001700).

516003394 is a wasteful number, since it uses less digits than its factorization.

516003394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258001699.

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

The square root of 516003394 is about 22715.7080893377. The cubic root of 516003394 is about 802.0796899689.

The spelling of 516003394 in words is "five hundred sixteen million, three thousand, three hundred ninety-four".