343640527 has 2 divisors, whose sum is σ = 343640528. Its totient is φ = 343640526.

The previous prime is 343640467. The next prime is 343640543. The reversal of 343640527 is 725046343.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343640527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343640492 and 343640501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343640587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171820263 + 171820264.

It is an arithmetic number, because the mean of its divisors is an integer number (171820264).

Almost surely, 2^343640527 is an apocalyptic number.

343640527 is a deficient number, since it is larger than the sum of its proper divisors (1).

343640527 is an equidigital number, since it uses as much as digits as its factorization.

343640527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 343640527 is about 18537.5437153901. The cubic root of 343640527 is about 700.4354617013.

The spelling of 343640527 in words is "three hundred forty-three million, six hundred forty thousand, five hundred twenty-seven".