86768078 has 4 divisors (see below), whose sum is σ = 130152120. Its totient is φ = 43384038.

The previous prime is 86768057. The next prime is 86768081. The reversal of 86768078 is 87086768.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21692018 + ... + 21692021.

It is an arithmetic number, because the mean of its divisors is an integer number (32538030).

Almost surely, 2^86768078 is an apocalyptic number.

86768078 is a deficient number, since it is larger than the sum of its proper divisors (43384042).

86768078 is a wasteful number, since it uses less digits than its factorization.

86768078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43384041.

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

The square root of 86768078 is about 9314.9384324321. The cubic root of 86768078 is about 442.7106733006.

The spelling of 86768078 in words is "eighty-six million, seven hundred sixty-eight thousand, seventy-eight".