86945878 has 8 divisors (see below), whose sum is σ = 131200272. Its totient is φ = 43212456.

The previous prime is 86945867. The next prime is 86945891. The reversal of 86945878 is 87854968.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129825 + ... + 130492.

It is an arithmetic number, because the mean of its divisors is an integer number (16400034).

Almost surely, 2^86945878 is an apocalyptic number.

86945878 is a deficient number, since it is larger than the sum of its proper divisors (44254394).

86945878 is a wasteful number, since it uses less digits than its factorization.

86945878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260486.

The product of its digits is 3870720, while the sum is 55.

The square root of 86945878 is about 9324.4773580078. The cubic root of 86945878 is about 443.0128591402.

The spelling of 86945878 in words is "eighty-six million, nine hundred forty-five thousand, eight hundred seventy-eight".