86638142 has 8 divisors (see below), whose sum is σ = 130248000. Its totient is φ = 43222144.

The previous prime is 86638133. The next prime is 86638147. The reversal of 86638142 is 24183668.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 86638096 and 86638105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86638147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47342 + ... + 49137.

It is an arithmetic number, because the mean of its divisors is an integer number (16281000).

Almost surely, 2^86638142 is an apocalyptic number.

86638142 is a deficient number, since it is larger than the sum of its proper divisors (43609858).

86638142 is a wasteful number, since it uses less digits than its factorization.

86638142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96930.

The product of its digits is 55296, while the sum is 38.

The square root of 86638142 is about 9307.9612160773. The cubic root of 86638142 is about 442.4895751212.

The spelling of 86638142 in words is "eighty-six million, six hundred thirty-eight thousand, one hundred forty-two".