234989563 has 2 divisors, whose sum is σ = 234989564. Its totient is φ = 234989562.

The previous prime is 234989537. The next prime is 234989611. The reversal of 234989563 is 365989432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234989563 - 2¹³ = 234981371 is a prime.

It is not a weakly prime, because it can be changed into another prime (234989063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117494781 + 117494782.

It is an arithmetic number, because the mean of its divisors is an integer number (117494782).

Almost surely, 2^234989563 is an apocalyptic number.

234989563 is a deficient number, since it is larger than the sum of its proper divisors (1).

234989563 is an equidigital number, since it uses as much as digits as its factorization.

234989563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 234989563 is about 15329.3692955712. The cubic root of 234989563 is about 617.0914434279.

The spelling of 234989563 in words is "two hundred thirty-four million, nine hundred eighty-nine thousand, five hundred sixty-three".