340333997 has 2 divisors, whose sum is σ = 340333998. Its totient is φ = 340333996.

The previous prime is 340333991. The next prime is 340334009. The reversal of 340333997 is 799333043.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328733161 + 11600836 = 18131^2 + 3406^2 .

It is an emirp because it is prime and its reverse (799333043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340333997 - 2⁶ = 340333933 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 (340333991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170166998 + 170166999.

It is an arithmetic number, because the mean of its divisors is an integer number (170166999).

Almost surely, 2^340333997 is an apocalyptic number.

It is an amenable number.

340333997 is a deficient number, since it is larger than the sum of its proper divisors (1).

340333997 is an equidigital number, since it uses as much as digits as its factorization.

340333997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 41.

The square root of 340333997 is about 18448.1434567276. The cubic root of 340333997 is about 698.1816733040.

The spelling of 340333997 in words is "three hundred forty million, three hundred thirty-three thousand, nine hundred ninety-seven".