8387142 has 8 divisors (see below), whose sum is σ = 16774296. Its totient is φ = 2795712.

The previous prime is 8387131. The next prime is 8387147. The reversal of 8387142 is 2417838.

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

8387142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8387147) 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, 698923 + ... + 698934.

It is an arithmetic number, because the mean of its divisors is an integer number (2096787).

Almost surely, 2^8387142 is an apocalyptic number.

8387142 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.

8387142 is a wasteful number, since it uses less digits than its factorization.

8387142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397862.

The product of its digits is 10752, while the sum is 33.

The square root of 8387142 is about 2896.0562839834. The cubic root of 8387142 is about 203.1754975674.

The spelling of 8387142 in words is "eight million, three hundred eighty-seven thousand, one hundred forty-two".