343799069 has 2 divisors, whose sum is σ = 343799070. Its totient is φ = 343799068.

The previous prime is 343799047. The next prime is 343799087. The reversal of 343799069 is 960997343.

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., 330766969 + 13032100 = 18187^2 + 3610^2 .

It is an emirp because it is prime and its reverse (960997343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343799069 - 2¹² = 343794973 is a prime.

It is a super-2 number, since 2×343799069² = 236395599690533522, which contains 22 as substring.

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 (343799039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171899534 + 171899535.

It is an arithmetic number, because the mean of its divisors is an integer number (171899535).

Almost surely, 2^343799069 is an apocalyptic number.

It is an amenable number.

343799069 is a deficient number, since it is larger than the sum of its proper divisors (1).

343799069 is an equidigital number, since it uses as much as digits as its factorization.

343799069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 50.

The square root of 343799069 is about 18541.8194630408. The cubic root of 343799069 is about 700.5431627793.

The spelling of 343799069 in words is "three hundred forty-three million, seven hundred ninety-nine thousand, sixty-nine".