86767678 has 16 divisors (see below), whose sum is σ = 133061616. Its totient is φ = 42419520.

The previous prime is 86767673. The next prime is 86767693. The reversal of 86767678 is 87676768.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86767673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33850 + ... + 36322.

It is an arithmetic number, because the mean of its divisors is an integer number (8316351).

Almost surely, 2^86767678 is an apocalyptic number.

86767678 is a deficient number, since it is larger than the sum of its proper divisors (46293938).

86767678 is a wasteful number, since it uses less digits than its factorization.

86767678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859.

The product of its digits is 4741632, while the sum is 55.

The square root of 86767678 is about 9314.9169615193. The cubic root of 86767678 is about 442.7099930023.

The spelling of 86767678 in words is "eighty-six million, seven hundred sixty-seven thousand, six hundred seventy-eight".