67424087 has 2 divisors, whose sum is σ = 67424088. Its totient is φ = 67424086.

The previous prime is 67424069. The next prime is 67424089. The reversal of 67424087 is 78042476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67424087 - 2⁸ = 67423831 is a prime.

Together with 67424089, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67424087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67424089) 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, 33712043 + 33712044.

It is an arithmetic number, because the mean of its divisors is an integer number (33712044).

Almost surely, 2^67424087 is an apocalyptic number.

67424087 is a deficient number, since it is larger than the sum of its proper divisors (1).

67424087 is an equidigital number, since it uses as much as digits as its factorization.

67424087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 67424087 is about 8211.2171448574. The cubic root of 67424087 is about 407.0099485039.

The spelling of 67424087 in words is "sixty-seven million, four hundred twenty-four thousand, eighty-seven".