86639003 has 4 divisors (see below), whose sum is σ = 94515288. Its totient is φ = 78762720.

The previous prime is 86638967. The next prime is 86639009. The reversal of 86639003 is 30093668.

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

It is a cyclic number.

It is not a de Polignac number, because 86639003 - 2¹⁴ = 86622619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86639009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3938126 + ... + 3938147.

It is an arithmetic number, because the mean of its divisors is an integer number (23628822).

Almost surely, 2^86639003 is an apocalyptic number.

86639003 is a deficient number, since it is larger than the sum of its proper divisors (7876285).

86639003 is a wasteful number, since it uses less digits than its factorization.

86639003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876284.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 86639003 is about 9308.0074666923. The cubic root of 86639003 is about 442.4910409200.

The spelling of 86639003 in words is "eighty-six million, six hundred thirty-nine thousand, three".