67980239 has 2 divisors, whose sum is σ = 67980240. Its totient is φ = 67980238.

The previous prime is 67980217. The next prime is 67980251. The reversal of 67980239 is 93208976.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67980239 - 2⁸ = 67979983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67980239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67980439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33990119 + 33990120.

It is an arithmetic number, because the mean of its divisors is an integer number (33990120).

Almost surely, 2^67980239 is an apocalyptic number.

67980239 is a deficient number, since it is larger than the sum of its proper divisors (1).

67980239 is an equidigital number, since it uses as much as digits as its factorization.

67980239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 67980239 is about 8245.0129775519. The cubic root of 67980239 is about 408.1259683286.

The spelling of 67980239 in words is "sixty-seven million, nine hundred eighty thousand, two hundred thirty-nine".