86289029 has 6 divisors (see below), whose sum is σ = 86982450. Its totient is φ = 85597280.

The previous prime is 86289019. The next prime is 86289037. The reversal of 86289029 is 92098268.

It can be written as a sum of positive squares in 3 ways, for example, as 24304900 + 61984129 = 4930^2 + 7873^2 .

It is a de Polignac number, because none of the positive numbers 2^k-86289029 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 (86289019) 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 5 ways as a sum of consecutive naturals, for example, 113009 + ... + 113769.

It is an arithmetic number, because the mean of its divisors is an integer number (14497075).

Almost surely, 2^86289029 is an apocalyptic number.

It is an amenable number.

86289029 is a deficient number, since it is larger than the sum of its proper divisors (693421).

86289029 is an frugal number, since it uses more digits than its factorization.

86289029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 910 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 86289029 is about 9289.1888235733. The cubic root of 86289029 is about 441.8944299237.

The spelling of 86289029 in words is "eighty-six million, two hundred eighty-nine thousand, twenty-nine".