8987501 has 2 divisors, whose sum is σ = 8987502. Its totient is φ = 8987500.

The previous prime is 8987497. The next prime is 8987507. The reversal of 8987501 is 1057898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6100900 + 2886601 = 2470^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 8987501 - 2² = 8987497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8987507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4493750 + 4493751.

It is an arithmetic number, because the mean of its divisors is an integer number (4493751).

Almost surely, 2^8987501 is an apocalyptic number.

It is an amenable number.

8987501 is a deficient number, since it is larger than the sum of its proper divisors (1).

8987501 is an equidigital number, since it uses as much as digits as its factorization.

8987501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 8987501 is about 2997.9161095668. The cubic root of 8987501 is about 207.9120452215.

The spelling of 8987501 in words is "eight million, nine hundred eighty-seven thousand, five hundred one".