343402061 has 2 divisors, whose sum is σ = 343402062. Its totient is φ = 343402060.

The previous prime is 343402009. The next prime is 343402093. The reversal of 343402061 is 160204343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328733161 + 14668900 = 18131^2 + 3830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343402061 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 (343407061) 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, 171701030 + 171701031.

It is an arithmetic number, because the mean of its divisors is an integer number (171701031).

Almost surely, 2^343402061 is an apocalyptic number.

It is an amenable number.

343402061 is a deficient number, since it is larger than the sum of its proper divisors (1).

343402061 is an equidigital number, since it uses as much as digits as its factorization.

343402061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 343402061 is about 18531.1106251083. The cubic root of 343402061 is about 700.2734040850.

The spelling of 343402061 in words is "three hundred forty-three million, four hundred two thousand, sixty-one".