67331087 has 2 divisors, whose sum is σ = 67331088. Its totient is φ = 67331086.

The previous prime is 67331063. The next prime is 67331093. The reversal of 67331087 is 78013376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67331087 - 2⁶ = 67331023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67331057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33665543 + 33665544.

It is an arithmetic number, because the mean of its divisors is an integer number (33665544).

Almost surely, 2^67331087 is an apocalyptic number.

67331087 is a deficient number, since it is larger than the sum of its proper divisors (1).

67331087 is an equidigital number, since it uses as much as digits as its factorization.

67331087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 67331087 is about 8205.5522056715. The cubic root of 67331087 is about 406.8227288535.

The spelling of 67331087 in words is "sixty-seven million, three hundred thirty-one thousand, eighty-seven".