7838648 has 8 divisors (see below), whose sum is σ = 14697480. Its totient is φ = 3919320.

The previous prime is 7838641. The next prime is 7838651. The reversal of 7838648 is 8468387.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7838648² = 122888804935808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7838599 and 7838608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7838641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489908 + ... + 489923.

It is an arithmetic number, because the mean of its divisors is an integer number (1837185).

Almost surely, 2^7838648 is an apocalyptic number.

It is an amenable number.

7838648 is a deficient number, since it is larger than the sum of its proper divisors (6858832).

7838648 is a wasteful number, since it uses less digits than its factorization.

7838648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979837 (or 979833 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 7838648 is about 2799.7585610191. The cubic root of 7838648 is about 198.6462575814.

The spelling of 7838648 in words is "seven million, eight hundred thirty-eight thousand, six hundred forty-eight".