8787241 has 8 divisors (see below), whose sum is σ = 9197064. Its totient is φ = 8386560.

The previous prime is 8787227. The next prime is 8787263. The reversal of 8787241 is 1427878.

It can be written as a sum of positive squares in 4 ways, for example, as 5271616 + 3515625 = 2296^2 + 1875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8787241 - 2⁵ = 8787209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

8787241 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8787241.

It is not an unprimeable number, because it can be changed into a prime (8787211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (1149633).

Almost surely, 2^8787241 is an apocalyptic number.

8787241 is the 1585-th centered heptagonal number.

It is an amenable number.

8787241 is a deficient number, since it is larger than the sum of its proper divisors (409823).

8787241 is a wasteful number, since it uses less digits than its factorization.

8787241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its digits is 25088, while the sum is 37.

The square root of 8787241 is about 2964.3280857557. The cubic root of 8787241 is about 206.3561955720.

The spelling of 8787241 in words is "eight million, seven hundred eighty-seven thousand, two hundred forty-one".