516836649 has 16 divisors (see below), whose sum is σ = 790135808. Its totient is φ = 294369552.

The previous prime is 516836629. The next prime is 516836687. The reversal of 516836649 is 946638615.

It is not a de Polignac number, because 516836649 - 2¹¹ = 516834601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 516836598 and 516836607.

It is not an unprimeable number, because it can be changed into a prime (516836629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33637 + ... + 46530.

It is an arithmetic number, because the mean of its divisors is an integer number (49383488).

Almost surely, 2^516836649 is an apocalyptic number.

It is an amenable number.

516836649 is a deficient number, since it is larger than the sum of its proper divisors (273299159).

516836649 is a wasteful number, since it uses less digits than its factorization.

516836649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80484.

The product of its digits is 933120, while the sum is 48.

The square root of 516836649 is about 22734.0416336383. The cubic root of 516836649 is about 802.5111971342.

The spelling of 516836649 in words is "five hundred sixteen million, eight hundred thirty-six thousand, six hundred forty-nine".