8241987 has 8 divisors (see below), whose sum is σ = 11834704. Its totient is φ = 5071968.

The previous prime is 8241979. The next prime is 8242007. The reversal of 8241987 is 7891428.

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

It is not a de Polignac number, because 8241987 - 2³ = 8241979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 211333 = 8241987 / (8 + 2 + 4 + 1 + 9 + 8 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8241487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105628 + ... + 105705.

It is an arithmetic number, because the mean of its divisors is an integer number (1479338).

Almost surely, 2^8241987 is an apocalyptic number.

8241987 is a deficient number, since it is larger than the sum of its proper divisors (3592717).

8241987 is a wasteful number, since it uses less digits than its factorization.

8241987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211349.

The product of its digits is 32256, while the sum is 39.

The square root of 8241987 is about 2870.8861001440. The cubic root of 8241987 is about 201.9965607361.

The spelling of 8241987 in words is "eight million, two hundred forty-one thousand, nine hundred eighty-seven".