343394677 has 2 divisors, whose sum is σ = 343394678. Its totient is φ = 343394676.

The previous prime is 343394659. The next prime is 343394717. The reversal of 343394677 is 776493343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343027441 + 367236 = 18521^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 343394677 - 2¹⁹ = 342870389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343394627) 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, 171697338 + 171697339.

It is an arithmetic number, because the mean of its divisors is an integer number (171697339).

Almost surely, 2^343394677 is an apocalyptic number.

It is an amenable number.

343394677 is a deficient number, since it is larger than the sum of its proper divisors (1).

343394677 is an equidigital number, since it uses as much as digits as its factorization.

343394677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 46.

The square root of 343394677 is about 18530.9113915101. The cubic root of 343394677 is about 700.2683848413.

The spelling of 343394677 in words is "three hundred forty-three million, three hundred ninety-four thousand, six hundred seventy-seven".