343860749 has 2 divisors, whose sum is σ = 343860750. Its totient is φ = 343860748.

The previous prime is 343860731. The next prime is 343860757. The reversal of 343860749 is 947068343.

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., 343360900 + 499849 = 18530^2 + 707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343860749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343860709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171930374 + 171930375.

It is an arithmetic number, because the mean of its divisors is an integer number (171930375).

Almost surely, 2^343860749 is an apocalyptic number.

It is an amenable number.

343860749 is a deficient number, since it is larger than the sum of its proper divisors (1).

343860749 is an equidigital number, since it uses as much as digits as its factorization.

343860749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 343860749 is about 18543.4826556394. The cubic root of 343860749 is about 700.5850544174.

The spelling of 343860749 in words is "three hundred forty-three million, eight hundred sixty thousand, seven hundred forty-nine".