340653563 has 2 divisors, whose sum is σ = 340653564. Its totient is φ = 340653562.

The previous prime is 340653499. The next prime is 340653571. The reversal of 340653563 is 365356043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340653563 - 2⁶ = 340653499 is a prime.

It is not a weakly prime, because it can be changed into another prime (340653583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170326781 + 170326782.

It is an arithmetic number, because the mean of its divisors is an integer number (170326782).

Almost surely, 2^340653563 is an apocalyptic number.

340653563 is a deficient number, since it is larger than the sum of its proper divisors (1).

340653563 is an equidigital number, since it uses as much as digits as its factorization.

340653563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 35.

The square root of 340653563 is about 18456.8026212559. The cubic root of 340653563 is about 698.4001305936.

The spelling of 340653563 in words is "three hundred forty million, six hundred fifty-three thousand, five hundred sixty-three".