7838923 has 4 divisors (see below), whose sum is σ = 7908408. Its totient is φ = 7769440.

The previous prime is 7838893. The next prime is 7838951. The reversal of 7838923 is 3298387.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7838923 - 2⁵ = 7838891 is a prime.

It is a super-2 number, since 2×7838923² = 122897427599858, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

7838923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7838023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34573 + ... + 34798.

It is an arithmetic number, because the mean of its divisors is an integer number (1977102).

Almost surely, 2^7838923 is an apocalyptic number.

7838923 is a deficient number, since it is larger than the sum of its proper divisors (69485).

7838923 is a wasteful number, since it uses less digits than its factorization.

7838923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69484.

The product of its digits is 72576, while the sum is 40.

The square root of 7838923 is about 2799.8076719661. The cubic root of 7838923 is about 198.6485805620.

The spelling of 7838923 in words is "seven million, eight hundred thirty-eight thousand, nine hundred twenty-three".