8347142 has 4 divisors (see below), whose sum is σ = 12520716. Its totient is φ = 4173570.

The previous prime is 8347139. The next prime is 8347147. The reversal of 8347142 is 2417438.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8347147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086784 + ... + 2086787.

It is an arithmetic number, because the mean of its divisors is an integer number (3130179).

Almost surely, 2^8347142 is an apocalyptic number.

8347142 is a deficient number, since it is larger than the sum of its proper divisors (4173574).

8347142 is a wasteful number, since it uses less digits than its factorization.

8347142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173573.

The product of its digits is 5376, while the sum is 29.

The square root of 8347142 is about 2889.1420871947. The cubic root of 8347142 is about 202.8519875226.

The spelling of 8347142 in words is "eight million, three hundred forty-seven thousand, one hundred forty-two".