86438089 has 4 divisors (see below), whose sum is σ = 86463360. Its totient is φ = 86412820.

The previous prime is 86438083. The next prime is 86438113. The reversal of 86438089 is 98083468.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86438089 - 2⁹ = 86437577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86438083) 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, 6517 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (21615840).

Almost surely, 2^86438089 is an apocalyptic number.

It is an amenable number.

86438089 is a deficient number, since it is larger than the sum of its proper divisors (25271).

86438089 is a wasteful number, since it uses less digits than its factorization.

86438089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25270.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 86438089 is about 9297.2086671215. The cubic root of 86438089 is about 442.1487337539.

The spelling of 86438089 in words is "eighty-six million, four hundred thirty-eight thousand, eighty-nine".