86984775 has 36 divisors (see below), whose sum is σ = 161183880. Its totient is φ = 44788800.

The previous prime is 86984753. The next prime is 86984783. The reversal of 86984775 is 57748968.

86984775 is a `hidden beast` number, since 86 + 98 + 477 + 5 = 666.

It is not a de Polignac number, because 86984775 - 2¹³ = 86976583 is a prime.

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 35 ways as a sum of consecutive naturals, for example, 141 + ... + 13190.

It is an arithmetic number, because the mean of its divisors is an integer number (4477330).

Almost surely, 2^86984775 is an apocalyptic number.

86984775 is a deficient number, since it is larger than the sum of its proper divisors (74199105).

86984775 is a wasteful number, since it uses less digits than its factorization.

86984775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13376 (or 13368 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 86984775 is about 9326.5628717122. The cubic root of 86984775 is about 443.0789128836.

The spelling of 86984775 in words is "eighty-six million, nine hundred eighty-four thousand, seven hundred seventy-five".