7842872 has 16 divisors (see below), whose sum is σ = 14745240. Its totient is φ = 3910816.

The previous prime is 7842871. The next prime is 7842881. The reversal of 7842872 is 2782487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2438 + ... + 4650.

Almost surely, 2^7842872 is an apocalyptic number.

It is an amenable number.

7842872 is a deficient number, since it is larger than the sum of its proper divisors (6902368).

7842872 is a wasteful number, since it uses less digits than its factorization.

7842872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662 (or 2658 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 7842872 is about 2800.5128101832. The cubic root of 7842872 is about 198.6819325736.

The spelling of 7842872 in words is "seven million, eight hundred forty-two thousand, eight hundred seventy-two".