86055778 has 8 divisors (see below), whose sum is σ = 131830272. Its totient is φ = 42112356.

The previous prime is 86055743. The next prime is 86055787. The reversal of 86055778 is 87755068.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457650 + ... + 457837.

It is an arithmetic number, because the mean of its divisors is an integer number (16478784).

Almost surely, 2^86055778 is an apocalyptic number.

86055778 is a deficient number, since it is larger than the sum of its proper divisors (45774494).

86055778 is a wasteful number, since it uses less digits than its factorization.

86055778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915536.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 86055778 is about 9276.6253562381. The cubic root of 86055778 is about 441.4959036706.

The spelling of 86055778 in words is "eighty-six million, fifty-five thousand, seven hundred seventy-eight".