7087128 has 64 divisors (see below), whose sum is σ = 19042560. Its totient is φ = 2192256.

The previous prime is 7087123. The next prime is 7087207. The reversal of 7087128 is 8217807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7087123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20251 + ... + 20597.

It is an arithmetic number, because the mean of its divisors is an integer number (297540).

Almost surely, 2^7087128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7087128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9521280).

7087128 is an abundant number, since it is smaller than the sum of its proper divisors (11955432).

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

7087128 is a wasteful number, since it uses less digits than its factorization.

7087128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 7087128 is about 2662.1660353930. The cubic root of 7087128 is about 192.0835140160.

The spelling of 7087128 in words is "seven million, eighty-seven thousand, one hundred twenty-eight".