7987104 has 36 divisors (see below), whose sum is σ = 22714146. Its totient is φ = 2662272.

The previous prime is 7987099. The next prime is 7987123. The reversal of 7987104 is 4017897.

It can be written as a sum of positive squares in only one way, i.e., 7551504 + 435600 = 2748^2 + 660^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13579 + ... + 14154.

Almost surely, 2^7987104 is an apocalyptic number.

It is an amenable number.

7987104 is an abundant number, since it is smaller than the sum of its proper divisors (14727042).

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

7987104 is a wasteful number, since it uses less digits than its factorization.

7987104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27749 (or 27738 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 7987104 is about 2826.1464930184. The cubic root of 7987104 is about 199.8924755361.

The spelling of 7987104 in words is "seven million, nine hundred eighty-seven thousand, one hundred four".