7847242 has 16 divisors (see below), whose sum is σ = 12972960. Its totient is φ = 3537072.

The previous prime is 7847239. The next prime is 7847243. The reversal of 7847242 is 2427487.

It is a junction number, because it is equal to n+sod(n) for n = 7847198 and 7847207.

It is not an unprimeable number, because it can be changed into a prime (7847243) 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, 2392 + ... + 4627.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^7847242 is an apocalyptic number.

7847242 is a deficient number, since it is larger than the sum of its proper divisors (5125718).

7847242 is a wasteful number, since it uses less digits than its factorization.

7847242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077.

The product of its digits is 25088, while the sum is 34.

The square root of 7847242 is about 2801.2929157801. The cubic root of 7847242 is about 198.7188271719.

The spelling of 7847242 in words is "seven million, eight hundred forty-seven thousand, two hundred forty-two".