86878067 has 2 divisors, whose sum is σ = 86878068. Its totient is φ = 86878066.

The previous prime is 86878049. The next prime is 86878073. The reversal of 86878067 is 76087868.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86878067 - 2¹² = 86873971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86878037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43439033 + 43439034.

It is an arithmetic number, because the mean of its divisors is an integer number (43439034).

Almost surely, 2^86878067 is an apocalyptic number.

86878067 is a deficient number, since it is larger than the sum of its proper divisors (1).

86878067 is an equidigital number, since it uses as much as digits as its factorization.

86878067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 50.

The square root of 86878067 is about 9320.8404663957. The cubic root of 86878067 is about 442.8976573657.

The spelling of 86878067 in words is "eighty-six million, eight hundred seventy-eight thousand, sixty-seven".