340635797 has 2 divisors, whose sum is σ = 340635798. Its totient is φ = 340635796.

The previous prime is 340635689. The next prime is 340635803. The reversal of 340635797 is 797536043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304467601 + 36168196 = 17449^2 + 6014^2 .

It is an emirp because it is prime and its reverse (797536043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340635797 - 2⁸ = 340635541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340638797) 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, 170317898 + 170317899.

It is an arithmetic number, because the mean of its divisors is an integer number (170317899).

Almost surely, 2^340635797 is an apocalyptic number.

It is an amenable number.

340635797 is a deficient number, since it is larger than the sum of its proper divisors (1).

340635797 is an equidigital number, since it uses as much as digits as its factorization.

340635797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 340635797 is about 18456.3213290190. The cubic root of 340635797 is about 698.3879892338.

The spelling of 340635797 in words is "three hundred forty million, six hundred thirty-five thousand, seven hundred ninety-seven".