7842423 has 16 divisors (see below), whose sum is σ = 11128320. Its totient is φ = 4895616.

The previous prime is 7842403. The next prime is 7842427. The reversal of 7842423 is 3242487.

7842423 is nontrivially palindromic in base 16.

7842423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7842423 - 2⁸ = 7842167 is a prime.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7842427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18508 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (695520).

Almost surely, 2^7842423 is an apocalyptic number.

7842423 is a deficient number, since it is larger than the sum of its proper divisors (3285897).

7842423 is a wasteful number, since it uses less digits than its factorization.

7842423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 10752, while the sum is 30.

The square root of 7842423 is about 2800.4326451461. The cubic root of 7842423 is about 198.6781410251.

The spelling of 7842423 in words is "seven million, eight hundred forty-two thousand, four hundred twenty-three".