7987056 has 80 divisors (see below), whose sum is σ = 25736448. Its totient is φ = 2073600.

The previous prime is 7987051. The next prime is 7987069. The reversal of 7987056 is 6507897.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7986999 and 7987017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987051) 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, 2616 + ... + 4776.

Almost surely, 2^7987056 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 7987056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12868224).

7987056 is an abundant number, since it is smaller than the sum of its proper divisors (17749392).

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

7987056 is a wasteful number, since it uses less digits than its factorization.

7987056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 7987056 is about 2826.1380008768. The cubic root of 7987056 is about 199.8920751049.

The spelling of 7987056 in words is "seven million, nine hundred eighty-seven thousand, fifty-six".