7927842 has 64 divisors (see below), whose sum is σ = 18232704. Its totient is φ = 2280960.

The previous prime is 7927841. The next prime is 7927849. The reversal of 7927842 is 2487297.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 7927842.

It is not an unprimeable number, because it can be changed into a prime (7927841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118293 + ... + 118359.

It is an arithmetic number, because the mean of its divisors is an integer number (284886).

Almost surely, 2^7927842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7927842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9116352).

7927842 is an abundant number, since it is smaller than the sum of its proper divisors (10304862).

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

7927842 is a wasteful number, since it uses less digits than its factorization.

7927842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its digits is 56448, while the sum is 39.

The square root of 7927842 is about 2815.6423778598. The cubic root of 7927842 is about 199.3968663104.

The spelling of 7927842 in words is "seven million, nine hundred twenty-seven thousand, eight hundred forty-two".