67452239 has 2 divisors, whose sum is σ = 67452240. Its totient is φ = 67452238.

The previous prime is 67452233. The next prime is 67452241. The reversal of 67452239 is 93225476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67452239 - 2¹⁶ = 67386703 is a prime.

It is a super-2 number, since 2×67452239² = 9099609092226242, which contains 22 as substring.

Together with 67452241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67452233) 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, 33726119 + 33726120.

It is an arithmetic number, because the mean of its divisors is an integer number (33726120).

Almost surely, 2^67452239 is an apocalyptic number.

67452239 is a deficient number, since it is larger than the sum of its proper divisors (1).

67452239 is an equidigital number, since it uses as much as digits as its factorization.

67452239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 67452239 is about 8212.9312063355. The cubic root of 67452239 is about 407.0665877566.

The spelling of 67452239 in words is "sixty-seven million, four hundred fifty-two thousand, two hundred thirty-nine".