340997963 has 2 divisors, whose sum is σ = 340997964. Its totient is φ = 340997962.

The previous prime is 340997929. The next prime is 340997999. The reversal of 340997963 is 369799043.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (369799043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340997963 - 2¹⁰ = 340996939 is a prime.

It is a super-3 number, since 3×340997963³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (340997903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170498981 + 170498982.

It is an arithmetic number, because the mean of its divisors is an integer number (170498982).

Almost surely, 2^340997963 is an apocalyptic number.

340997963 is a deficient number, since it is larger than the sum of its proper divisors (1).

340997963 is an equidigital number, since it uses as much as digits as its factorization.

340997963 is an odious number, because the sum of its binary digits is odd.

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

The square root of 340997963 is about 18466.1301576697. The cubic root of 340997963 is about 698.6354116518.

The spelling of 340997963 in words is "three hundred forty million, nine hundred ninety-seven thousand, nine hundred sixty-three".