8347642 has 8 divisors (see below), whose sum is σ = 12672576. Its totient is φ = 4123452.

The previous prime is 8347609. The next prime is 8347657. The reversal of 8347642 is 2467438.

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 = 8347598 and 8347607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24978 + ... + 25309.

It is an arithmetic number, because the mean of its divisors is an integer number (1584072).

Almost surely, 2^8347642 is an apocalyptic number.

8347642 is a deficient number, since it is larger than the sum of its proper divisors (4324934).

8347642 is a wasteful number, since it uses less digits than its factorization.

8347642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50372.

The product of its digits is 32256, while the sum is 34.

The square root of 8347642 is about 2889.2286167765. The cubic root of 8347642 is about 202.8560377699.

The spelling of 8347642 in words is "eight million, three hundred forty-seven thousand, six hundred forty-two".