516823994 has 8 divisors (see below), whose sum is σ = 775339680. Its totient is φ = 258377436.

The previous prime is 516823991. The next prime is 516823999. The reversal of 516823994 is 499328615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×516823994² = 534214081548224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (516823991) 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, 10067 + ... + 33689.

It is an arithmetic number, because the mean of its divisors is an integer number (96917460).

Almost surely, 2^516823994 is an apocalyptic number.

516823994 is a deficient number, since it is larger than the sum of its proper divisors (258515686).

516823994 is a wasteful number, since it uses less digits than its factorization.

516823994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34564.

The product of its digits is 466560, while the sum is 47.

The square root of 516823994 is about 22733.7633048292. The cubic root of 516823994 is about 802.5046471200.

The spelling of 516823994 in words is "five hundred sixteen million, eight hundred twenty-three thousand, nine hundred ninety-four".