86798818 has 8 divisors (see below), whose sum is σ = 133717212. Its totient is φ = 42226416.

The previous prime is 86798813. The next prime is 86798837. The reversal of 86798818 is 81889768.

It can be written as a sum of positive squares in 2 ways, for example, as 86545809 + 253009 = 9303^2 + 503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86798813) 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, 586405 + ... + 586552.

Almost surely, 2^86798818 is an apocalyptic number.

86798818 is a deficient number, since it is larger than the sum of its proper divisors (46918394).

86798818 is a wasteful number, since it uses less digits than its factorization.

86798818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172996.

The product of its digits is 1548288, while the sum is 55.

The square root of 86798818 is about 9316.5883240594. The cubic root of 86798818 is about 442.7629479759.

It can be divided in two parts, 86798 and 818, that added together give a square (87616 = 296²).

The spelling of 86798818 in words is "eighty-six million, seven hundred ninety-eight thousand, eight hundred eighteen".