343650689 has 2 divisors, whose sum is σ = 343650690. Its totient is φ = 343650688.

The previous prime is 343650683. The next prime is 343650737. The reversal of 343650689 is 986056343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318979600 + 24671089 = 17860^2 + 4967^2 .

It is a cyclic number.

It is not a de Polignac number, because 343650689 - 2¹² = 343646593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (343650683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171825344 + 171825345.

It is an arithmetic number, because the mean of its divisors is an integer number (171825345).

Almost surely, 2^343650689 is an apocalyptic number.

It is an amenable number.

343650689 is a deficient number, since it is larger than the sum of its proper divisors (1).

343650689 is an equidigital number, since it uses as much as digits as its factorization.

343650689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 343650689 is about 18537.8178057721. The cubic root of 343650689 is about 700.4423659656.

The spelling of 343650689 in words is "three hundred forty-three million, six hundred fifty thousand, six hundred eighty-nine".