86295989 has 4 divisors (see below), whose sum is σ = 92934156. Its totient is φ = 79657824.

The previous prime is 86295947. The next prime is 86295991. The reversal of 86295989 is 98959268.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33443089 + 52852900 = 5783^2 + 7270^2 .

It is a cyclic number.

It is not a de Polignac number, because 86295989 - 2¹² = 86291893 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 (86295089) 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, 3319064 + ... + 3319089.

It is an arithmetic number, because the mean of its divisors is an integer number (23233539).

Almost surely, 2^86295989 is an apocalyptic number.

It is an amenable number.

86295989 is a deficient number, since it is larger than the sum of its proper divisors (6638167).

86295989 is a wasteful number, since it uses less digits than its factorization.

86295989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638166.

The product of its digits is 2799360, while the sum is 56.

The square root of 86295989 is about 9289.5634450710. The cubic root of 86295989 is about 441.9063105478.

The spelling of 86295989 in words is "eighty-six million, two hundred ninety-five thousand, nine hundred eighty-nine".