8247942 has 12 divisors (see below), whose sum is σ = 17870580. Its totient is φ = 2749308.

The previous prime is 8247923. The next prime is 8247947. The reversal of 8247942 is 2497428.

It is a junction number, because it is equal to n+sod(n) for n = 8247897 and 8247906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8247947) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229092 + ... + 229127.

It is an arithmetic number, because the mean of its divisors is an integer number (1489215).

Almost surely, 2^8247942 is an apocalyptic number.

8247942 is an abundant number, since it is smaller than the sum of its proper divisors (9622638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8247942 is a wasteful number, since it uses less digits than its factorization.

8247942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458227 (or 458224 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 8247942 is about 2871.9230491084. The cubic root of 8247942 is about 202.0451978723.

The spelling of 8247942 in words is "eight million, two hundred forty-seven thousand, nine hundred forty-two".