86139498 has 8 divisors (see below), whose sum is σ = 172279008. Its totient is φ = 28713164.

The previous prime is 86139491. The next prime is 86139509. The reversal of 86139498 is 89493168.

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

86139498 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (86139491) 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, 7178286 + ... + 7178297.

It is an arithmetic number, because the mean of its divisors is an integer number (21534876).

Almost surely, 2^86139498 is an apocalyptic number.

86139498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86139498 is a wasteful number, since it uses less digits than its factorization.

86139498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356588.

The product of its digits is 373248, while the sum is 48.

The square root of 86139498 is about 9281.1366760758. The cubic root of 86139498 is about 441.6390281190.

The spelling of 86139498 in words is "eighty-six million, one hundred thirty-nine thousand, four hundred ninety-eight".