516680429 has 2 divisors, whose sum is σ = 516680430. Its totient is φ = 516680428.

The previous prime is 516680399. The next prime is 516680537. The reversal of 516680429 is 924086615.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312476329 + 204204100 = 17677^2 + 14290^2 .

It is a cyclic number.

It is not a de Polignac number, because 516680429 - 2¹⁶ = 516614893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (516680629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258340214 + 258340215.

It is an arithmetic number, because the mean of its divisors is an integer number (258340215).

Almost surely, 2^516680429 is an apocalyptic number.

It is an amenable number.

516680429 is a deficient number, since it is larger than the sum of its proper divisors (1).

516680429 is an equidigital number, since it uses as much as digits as its factorization.

516680429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 516680429 is about 22730.6055572657. The cubic root of 516680429 is about 802.4303328141.

The spelling of 516680429 in words is "five hundred sixteen million, six hundred eighty thousand, four hundred twenty-nine".