7981896 has 32 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 2455872.

The previous prime is 7981889. The next prime is 7981907. The reversal of 7981896 is 6981897.

It is a happy number.

7981896 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12480 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (671580).

Almost surely, 2^7981896 is an apocalyptic number.

It is an amenable number.

7981896 is an abundant number, since it is smaller than the sum of its proper divisors (13508664).

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

7981896 is a wasteful number, since it uses less digits than its factorization.

7981896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25605 (or 25601 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 7981896 is about 2825.2249467963. The cubic root of 7981896 is about 199.8490193863.

Subtracting from 7981896 its reverse (6981897), we obtain a palindrome (999999).

The spelling of 7981896 in words is "seven million, nine hundred eighty-one thousand, eight hundred ninety-six".