86752981 has 24 divisors (see below), whose sum is σ = 103931520. Its totient is φ = 72176832.

The previous prime is 86752979. The next prime is 86752999. The reversal of 86752981 is 18925768.

It is not a de Polignac number, because 86752981 - 2¹ = 86752979 is a prime.

It is a super-2 number, since 2×86752981² = 15052159424772722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86752931) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 282430 + ... + 282736.

It is an arithmetic number, because the mean of its divisors is an integer number (4330480).

Almost surely, 2^86752981 is an apocalyptic number.

It is an amenable number.

86752981 is a deficient number, since it is larger than the sum of its proper divisors (17178539).

86752981 is a wasteful number, since it uses less digits than its factorization.

86752981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 466 counting only the distinct ones).

The product of its digits is 241920, while the sum is 46.

The square root of 86752981 is about 9314.1280321885. The cubic root of 86752981 is about 442.6849956902.

The spelling of 86752981 in words is "eighty-six million, seven hundred fifty-two thousand, nine hundred eighty-one".