7989736 has 8 divisors (see below), whose sum is σ = 14980770. Its totient is φ = 3994864.

The previous prime is 7989713. The next prime is 7989749. The reversal of 7989736 is 6379897.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 93636 = 2810^2 + 306^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7989736.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499351 + ... + 499366.

Almost surely, 2^7989736 is an apocalyptic number.

It is an amenable number.

7989736 is a deficient number, since it is larger than the sum of its proper divisors (6991034).

7989736 is a wasteful number, since it uses less digits than its factorization.

7989736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998723 (or 998719 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The square root of 7989736 is about 2826.6121063917. The cubic root of 7989736 is about 199.9144300608.

The spelling of 7989736 in words is "seven million, nine hundred eighty-nine thousand, seven hundred thirty-six".