517110989 has 2 divisors, whose sum is σ = 517110990. Its totient is φ = 517110988.

The previous prime is 517110959. The next prime is 517111019. The reversal of 517110989 is 989011715.

It is a balanced prime because it is at equal distance from previous prime (517110959) and next prime (517111019).

It can be written as a sum of positive squares in only one way, i.e., 316662025 + 200448964 = 17795^2 + 14158^2 .

It is a cyclic number.

It is not a de Polignac number, because 517110989 - 2¹² = 517106893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517110959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258555494 + 258555495.

It is an arithmetic number, because the mean of its divisors is an integer number (258555495).

Almost surely, 2^517110989 is an apocalyptic number.

It is an amenable number.

517110989 is a deficient number, since it is larger than the sum of its proper divisors (1).

517110989 is an equidigital number, since it uses as much as digits as its factorization.

517110989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 41.

The square root of 517110989 is about 22740.0745161488. The cubic root of 517110989 is about 802.6531646072.

The spelling of 517110989 in words is "five hundred seventeen million, one hundred ten thousand, nine hundred eighty-nine".