86039999 has 4 divisors (see below), whose sum is σ = 90568440. Its totient is φ = 81511560.

The previous prime is 86039983. The next prime is 86040011. The reversal of 86039999 is 99993068.

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 86039999 - 2⁴ = 86039983 is a prime.

86039999 is a modest number, since divided by 9999 gives 8603 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 86039999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86039929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2264192 + ... + 2264229.

It is an arithmetic number, because the mean of its divisors is an integer number (22642110).

Almost surely, 2^86039999 is an apocalyptic number.

86039999 is a deficient number, since it is larger than the sum of its proper divisors (4528441).

86039999 is a wasteful number, since it uses less digits than its factorization.

86039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528440.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 86039999 is about 9275.7748463403. The cubic root of 86039999 is about 441.4689181121.

The spelling of 86039999 in words is "eighty-six million, thirty-nine thousand, nine hundred ninety-nine".