343845949 has 2 divisors, whose sum is σ = 343845950. Its totient is φ = 343845948.

The previous prime is 343845941. The next prime is 343845973. The reversal of 343845949 is 949548343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291384900 + 52461049 = 17070^2 + 7243^2 .

It is a cyclic number.

It is not a de Polignac number, because 343845949 - 2³ = 343845941 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 (343845941) 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, 171922974 + 171922975.

It is an arithmetic number, because the mean of its divisors is an integer number (171922975).

Almost surely, 2^343845949 is an apocalyptic number.

It is an amenable number.

343845949 is a deficient number, since it is larger than the sum of its proper divisors (1).

343845949 is an equidigital number, since it uses as much as digits as its factorization.

343845949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 49.

The square root of 343845949 is about 18543.0835893063. The cubic root of 343845949 is about 700.5750030544.

The spelling of 343845949 in words is "three hundred forty-three million, eight hundred forty-five thousand, nine hundred forty-nine".