86530921 has 8 divisors (see below), whose sum is σ = 93204320. Its totient is φ = 80069472.

The previous prime is 86530909. The next prime is 86530933. The reversal of 86530921 is 12903568.

It is an interprime number because it is at equal distance from previous prime (86530909) and next prime (86530933).

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 86530921 - 2¹¹ = 86528873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86530321) 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, 52140 + ... + 53773.

It is an arithmetic number, because the mean of its divisors is an integer number (11650540).

Almost surely, 2^86530921 is an apocalyptic number.

It is an amenable number.

86530921 is a deficient number, since it is larger than the sum of its proper divisors (6673399).

86530921 is a wasteful number, since it uses less digits than its factorization.

86530921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105975.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 86530921 is about 9302.1997935972. The cubic root of 86530921 is about 442.3069620943.

The spelling of 86530921 in words is "eighty-six million, five hundred thirty thousand, nine hundred twenty-one".