86753881 has 4 divisors (see below), whose sum is σ = 86825700. Its totient is φ = 86682064.

The previous prime is 86753813. The next prime is 86753899. The reversal of 86753881 is 18835768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60590656 + 26163225 = 7784^2 + 5115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86753881 is a prime.

It is a super-2 number, since 2×86753881² = 15052471737124322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86753801) by changing a digit.

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, 34066 + ... + 36523.

It is an arithmetic number, because the mean of its divisors is an integer number (21706425).

Almost surely, 2^86753881 is an apocalyptic number.

It is an amenable number.

86753881 is a deficient number, since it is larger than the sum of its proper divisors (71819).

86753881 is a wasteful number, since it uses less digits than its factorization.

86753881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71818.

The product of its digits is 322560, while the sum is 46.

The square root of 86753881 is about 9314.1763457646. The cubic root of 86753881 is about 442.6865265314.

The spelling of 86753881 in words is "eighty-six million, seven hundred fifty-three thousand, eight hundred eighty-one".