67828087 has 2 divisors, whose sum is σ = 67828088. Its totient is φ = 67828086.

The previous prime is 67828073. The next prime is 67828099. The reversal of 67828087 is 78082876.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67828087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67828687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33914043 + 33914044.

It is an arithmetic number, because the mean of its divisors is an integer number (33914044).

Almost surely, 2^67828087 is an apocalyptic number.

67828087 is a deficient number, since it is larger than the sum of its proper divisors (1).

67828087 is an equidigital number, since it uses as much as digits as its factorization.

67828087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 67828087 is about 8235.7808980084. The cubic root of 67828087 is about 407.8212544433.

The spelling of 67828087 in words is "sixty-seven million, eight hundred twenty-eight thousand, eighty-seven".