8187242 has 16 divisors (see below), whose sum is σ = 14229312. Its totient is φ = 3460320.

The previous prime is 8187227. The next prime is 8187247. The reversal of 8187242 is 2427818.

It is a junction number, because it is equal to n+sod(n) for n = 8187199 and 8187208.

It is not an unprimeable number, because it can be changed into a prime (8187247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2984 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (889332).

Almost surely, 2^8187242 is an apocalyptic number.

8187242 is a deficient number, since it is larger than the sum of its proper divisors (6042070).

8187242 is a wasteful number, since it uses less digits than its factorization.

8187242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093.

The product of its digits is 7168, while the sum is 32.

The square root of 8187242 is about 2861.3357020804. The cubic root of 8187242 is about 201.5483324016.

The spelling of 8187242 in words is "eight million, one hundred eighty-seven thousand, two hundred forty-two".