67298939 has 2 divisors, whose sum is σ = 67298940. Its totient is φ = 67298938.

The previous prime is 67298927. The next prime is 67298941. The reversal of 67298939 is 93989276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67298939 - 2²⁰ = 66250363 is a prime.

Together with 67298941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67298909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33649469 + 33649470.

It is an arithmetic number, because the mean of its divisors is an integer number (33649470).

Almost surely, 2^67298939 is an apocalyptic number.

67298939 is a deficient number, since it is larger than the sum of its proper divisors (1).

67298939 is an equidigital number, since it uses as much as digits as its factorization.

67298939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 67298939 is about 8203.5930542659. The cubic root of 67298939 is about 406.7579711528.

The spelling of 67298939 in words is "sixty-seven million, two hundred ninety-eight thousand, nine hundred thirty-nine".