516989349 has 6 divisors (see below), whose sum is σ = 746762406. Its totient is φ = 344659560.

The previous prime is 516989311. The next prime is 516989371. The reversal of 516989349 is 943989615.

516989349 is a `hidden beast` number, since 516 + 9 + 89 + 3 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 449864100 + 67125249 = 21210^2 + 8193^2 .

It is not a de Polignac number, because 516989349 - 2¹¹ = 516987301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516989295 and 516989304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516989309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28721622 + ... + 28721639.

It is an arithmetic number, because the mean of its divisors is an integer number (124460401).

Almost surely, 2^516989349 is an apocalyptic number.

It is an amenable number.

516989349 is a deficient number, since it is larger than the sum of its proper divisors (229773057).

516989349 is a wasteful number, since it uses less digits than its factorization.

516989349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57443267 (or 57443264 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 516989349 is about 22737.3997853756. The cubic root of 516989349 is about 802.5902236464.

The spelling of 516989349 in words is "five hundred sixteen million, nine hundred eighty-nine thousand, three hundred forty-nine".