7928838 has 24 divisors (see below), whose sum is σ = 17308200. Its totient is φ = 2623104.

The previous prime is 7928831. The next prime is 7928849. The reversal of 7928838 is 8388297.

It is a junction number, because it is equal to n+sod(n) for n = 7928793 and 7928802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 918 + ... + 4086.

It is an arithmetic number, because the mean of its divisors is an integer number (721175).

Almost surely, 2^7928838 is an apocalyptic number.

7928838 is an abundant number, since it is smaller than the sum of its proper divisors (9379362).

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

7928838 is a wasteful number, since it uses less digits than its factorization.

7928838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316 (or 3313 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 7928838 is about 2815.8192413577. The cubic root of 7928838 is about 199.4052162482.

The spelling of 7928838 in words is "seven million, nine hundred twenty-eight thousand, eight hundred thirty-eight".