8787140 has 12 divisors (see below), whose sum is σ = 18453036. Its totient is φ = 3514848.

The previous prime is 8787131. The next prime is 8787157. The reversal of 8787140 is 417878.

It can be written as a sum of positive squares in 2 ways, for example, as 1290496 + 7496644 = 1136^2 + 2738^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8787140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219659 + ... + 219698.

It is an arithmetic number, because the mean of its divisors is an integer number (1537753).

Almost surely, 2^8787140 is an apocalyptic number.

It is an amenable number.

8787140 is an abundant number, since it is smaller than the sum of its proper divisors (9665896).

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

8787140 is a wasteful number, since it uses less digits than its factorization.

8787140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439366 (or 439364 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 8787140 is about 2964.3110498057. The cubic root of 8787140 is about 206.3554049539.

The spelling of 8787140 in words is "eight million, seven hundred eighty-seven thousand, one hundred forty".