7923942 has 24 divisors (see below), whose sum is σ = 18489744. Its totient is φ = 2438064.

The previous prime is 7923917. The next prime is 7923953. The reversal of 7923942 is 2493297.

It is a d-powerful number, because it can be written as 7⁸ + 9³ + 2³ + 3⁷ + 9⁵ + 4² + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 7923897 and 7923906.

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 11 ways as a sum of consecutive naturals, for example, 16698 + ... + 17165.

It is an arithmetic number, because the mean of its divisors is an integer number (770406).

Almost surely, 2^7923942 is an apocalyptic number.

7923942 is an abundant number, since it is smaller than the sum of its proper divisors (10565802).

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

7923942 is a wasteful number, since it uses less digits than its factorization.

7923942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33884 (or 33881 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 7923942 is about 2814.9497331214. The cubic root of 7923942 is about 199.3641640387.

The spelling of 7923942 in words is "seven million, nine hundred twenty-three thousand, nine hundred forty-two".