86768278 has 4 divisors (see below), whose sum is σ = 130152420. Its totient is φ = 43384138.

The previous prime is 86768263. The next prime is 86768299. The reversal of 86768278 is 87286768.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 21692068 + ... + 21692071.

It is an arithmetic number, because the mean of its divisors is an integer number (32538105).

Almost surely, 2^86768278 is an apocalyptic number.

86768278 is a deficient number, since it is larger than the sum of its proper divisors (43384142).

86768278 is a wasteful number, since it uses less digits than its factorization.

86768278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43384141.

The product of its digits is 1806336, while the sum is 52.

The square root of 86768278 is about 9314.9491678699. The cubic root of 86768278 is about 442.7110134490.

The spelling of 86768278 in words is "eighty-six million, seven hundred sixty-eight thousand, two hundred seventy-eight".