343361891 has 2 divisors, whose sum is σ = 343361892. Its totient is φ = 343361890.

The previous prime is 343361807. The next prime is 343361927. The reversal of 343361891 is 198163343.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 343361891 - 2¹⁴ = 343345507 is a prime.

It is not a weakly prime, because it can be changed into another prime (343361191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171680945 + 171680946.

It is an arithmetic number, because the mean of its divisors is an integer number (171680946).

Almost surely, 2^343361891 is an apocalyptic number.

343361891 is a deficient number, since it is larger than the sum of its proper divisors (1).

343361891 is an equidigital number, since it uses as much as digits as its factorization.

343361891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 343361891 is about 18530.0267404016. The cubic root of 343361891 is about 700.2460978234.

The spelling of 343361891 in words is "three hundred forty-three million, three hundred sixty-one thousand, eight hundred ninety-one".