67209563 has 2 divisors, whose sum is σ = 67209564. Its totient is φ = 67209562.

The previous prime is 67209557. The next prime is 67209601. The reversal of 67209563 is 36590276.

It is an a-pointer prime, because the next prime (67209601) can be obtained adding 67209563 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67209563 - 2²⁰ = 66160987 is a prime.

It is not a weakly prime, because it can be changed into another prime (67209533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33604781 + 33604782.

It is an arithmetic number, because the mean of its divisors is an integer number (33604782).

Almost surely, 2^67209563 is an apocalyptic number.

67209563 is a deficient number, since it is larger than the sum of its proper divisors (1).

67209563 is an equidigital number, since it uses as much as digits as its factorization.

67209563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 67209563 is about 8198.1438752927. The cubic root of 67209563 is about 406.5778271254.

The spelling of 67209563 in words is "sixty-seven million, two hundred nine thousand, five hundred sixty-three".