345504563 has 2 divisors, whose sum is σ = 345504564. Its totient is φ = 345504562.

The previous prime is 345504553. The next prime is 345504587. The reversal of 345504563 is 365405543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345504563 - 2⁸ = 345504307 is a prime.

It is not a weakly prime, because it can be changed into another prime (345504503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172752281 + 172752282.

It is an arithmetic number, because the mean of its divisors is an integer number (172752282).

Almost surely, 2^345504563 is an apocalyptic number.

345504563 is a deficient number, since it is larger than the sum of its proper divisors (1).

345504563 is an equidigital number, since it uses as much as digits as its factorization.

345504563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 35.

The square root of 345504563 is about 18587.7530379549. The cubic root of 345504563 is about 701.6996541220.

The spelling of 345504563 in words is "three hundred forty-five million, five hundred four thousand, five hundred sixty-three".