343407377 has 2 divisors, whose sum is σ = 343407378. Its totient is φ = 343407376.

The previous prime is 343407359. The next prime is 343407401. The reversal of 343407377 is 773704343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270799936 + 72607441 = 16456^2 + 8521^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343407377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343407377.

It is not a weakly prime, because it can be changed into another prime (343404377) 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, 171703688 + 171703689.

It is an arithmetic number, because the mean of its divisors is an integer number (171703689).

Almost surely, 2^343407377 is an apocalyptic number.

It is an amenable number.

343407377 is a deficient number, since it is larger than the sum of its proper divisors (1).

343407377 is an equidigital number, since it uses as much as digits as its factorization.

343407377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 38.

The square root of 343407377 is about 18531.2540590215. The cubic root of 343407377 is about 700.2770175697.

The spelling of 343407377 in words is "three hundred forty-three million, four hundred seven thousand, three hundred seventy-seven".