86939142 has 8 divisors (see below), whose sum is σ = 173878296. Its totient is φ = 28979712.

The previous prime is 86939141. The next prime is 86939161. The reversal of 86939142 is 24193968.

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

86939142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 86939094 and 86939103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86939141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7244923 + ... + 7244934.

It is an arithmetic number, because the mean of its divisors is an integer number (21734787).

Almost surely, 2^86939142 is an apocalyptic number.

86939142 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.

86939142 is a wasteful number, since it uses less digits than its factorization.

86939142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14489862.

The product of its digits is 93312, while the sum is 42.

The square root of 86939142 is about 9324.1161511427. The cubic root of 86939142 is about 443.0014182617.

The spelling of 86939142 in words is "eighty-six million, nine hundred thirty-nine thousand, one hundred forty-two".