7987750 has 32 divisors (see below), whose sum is σ = 15163200. Its totient is φ = 3150400.

The previous prime is 7987729. The next prime is 7987751. The reversal of 7987750 is 577897.

It is a junction number, because it is equal to n+sod(n) for n = 7987697 and 7987706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987751) 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, 22071 + ... + 22429.

It is an arithmetic number, because the mean of its divisors is an integer number (473850).

Almost surely, 2^7987750 is an apocalyptic number.

7987750 is a deficient number, since it is larger than the sum of its proper divisors (7175450).

7987750 is a wasteful number, since it uses less digits than its factorization.

7987750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 7987750 is about 2826.2607806075. The cubic root of 7987750 is about 199.8978645173.

The spelling of 7987750 in words is "seven million, nine hundred eighty-seven thousand, seven hundred fifty".