7889216 has 14 divisors (see below), whose sum is σ = 15655290. Its totient is φ = 3944576.

The previous prime is 7889149. The next prime is 7889239. The reversal of 7889216 is 6129887.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 577600 = 2704^2 + 760^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571 + ... + 61698.

It is an arithmetic number, because the mean of its divisors is an integer number (1118235).

Almost surely, 2^7889216 is an apocalyptic number.

It is an amenable number.

7889216 is a deficient number, since it is larger than the sum of its proper divisors (7766074).

7889216 is a wasteful number, since it uses less digits than its factorization.

7889216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123281 (or 123271 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 7889216 is about 2808.7748218752. The cubic root of 7889216 is about 199.0725054179.

The spelling of 7889216 in words is "seven million, eight hundred eighty-nine thousand, two hundred sixteen".