7791942 has 16 divisors (see below), whose sum is σ = 15916032. Its totient is φ = 2541960.

The previous prime is 7791929. The next prime is 7791961. The reversal of 7791942 is 2491977.

It is a self number, because there is not a number n which added to its sum of digits gives 7791942.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13534 + ... + 14097.

It is an arithmetic number, because the mean of its divisors is an integer number (994752).

Almost surely, 2^7791942 is an apocalyptic number.

7791942 is an abundant number, since it is smaller than the sum of its proper divisors (8124090).

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

7791942 is a wasteful number, since it uses less digits than its factorization.

7791942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27683.

The product of its digits is 31752, while the sum is 39.

The square root of 7791942 is about 2791.4050225648. The cubic root of 7791942 is about 198.2509317243.

The spelling of 7791942 in words is "seven million, seven hundred ninety-one thousand, nine hundred forty-two".