343652681 has 2 divisors, whose sum is σ = 343652682. Its totient is φ = 343652680.

The previous prime is 343652669. The next prime is 343652713. The reversal of 343652681 is 186256343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257923600 + 85729081 = 16060^2 + 9259^2 .

It is a cyclic number.

It is not a de Polignac number, because 343652681 - 2¹⁴ = 343636297 is a prime.

It is a super-2 number, since 2×343652681² = 236194330316975522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343612681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171826340 + 171826341.

It is an arithmetic number, because the mean of its divisors is an integer number (171826341).

Almost surely, 2^343652681 is an apocalyptic number.

It is an amenable number.

343652681 is a deficient number, since it is larger than the sum of its proper divisors (1).

343652681 is an equidigital number, since it uses as much as digits as its factorization.

343652681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 343652681 is about 18537.8715337009. The cubic root of 343652681 is about 700.4437193539.

The spelling of 343652681 in words is "three hundred forty-three million, six hundred fifty-two thousand, six hundred eighty-one".