67538087 has 2 divisors, whose sum is σ = 67538088. Its totient is φ = 67538086.

The previous prime is 67538047. The next prime is 67538089. The reversal of 67538087 is 78083576.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67538087 - 2¹⁴ = 67521703 is a prime.

It is a super-2 number, since 2×67538087² = 9122786391239138, which contains 22 as substring.

Together with 67538089, 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 (67538089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33769043 + 33769044.

It is an arithmetic number, because the mean of its divisors is an integer number (33769044).

Almost surely, 2^67538087 is an apocalyptic number.

67538087 is a deficient number, since it is larger than the sum of its proper divisors (1).

67538087 is an equidigital number, since it uses as much as digits as its factorization.

67538087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 67538087 is about 8218.1559367050. The cubic root of 67538087 is about 407.2392088485.

The spelling of 67538087 in words is "sixty-seven million, five hundred thirty-eight thousand, eighty-seven".