86147842 has 16 divisors (see below), whose sum is σ = 141128064. Its totient is φ = 39114000.

The previous prime is 86147821. The next prime is 86147879. The reversal of 86147842 is 24874168.

It is a junction number, because it is equal to n+sod(n) for n = 86147795 and 86147804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25492 + ... + 28672.

It is an arithmetic number, because the mean of its divisors is an integer number (8820504).

Almost surely, 2^86147842 is an apocalyptic number.

86147842 is a deficient number, since it is larger than the sum of its proper divisors (54980222).

86147842 is a wasteful number, since it uses less digits than its factorization.

86147842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425.

The product of its digits is 86016, while the sum is 40.

The square root of 86147842 is about 9281.5861790968. The cubic root of 86147842 is about 441.6532876134.

The spelling of 86147842 in words is "eighty-six million, one hundred forty-seven thousand, eight hundred forty-two".