86896661 has 8 divisors (see below), whose sum is σ = 87870744. Its totient is φ = 85926400.

The previous prime is 86896643. The next prime is 86896681. The reversal of 86896661 is 16669868.

It can be written as a sum of positive squares in 4 ways, for example, as 2146225 + 84750436 = 1465^2 + 9206^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 86896661 - 2⁶ = 86896597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86896631) 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 7 ways as a sum of consecutive naturals, for example, 78665 + ... + 79761.

It is an arithmetic number, because the mean of its divisors is an integer number (10983843).

Almost surely, 2^86896661 is an apocalyptic number.

It is an amenable number.

86896661 is a deficient number, since it is larger than the sum of its proper divisors (974083).

86896661 is a wasteful number, since it uses less digits than its factorization.

86896661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 746496, while the sum is 50.

The square root of 86896661 is about 9321.8378552730. The cubic root of 86896661 is about 442.9292520358.

The spelling of 86896661 in words is "eighty-six million, eight hundred ninety-six thousand, six hundred sixty-one".