8256987 has 6 divisors (see below), whose sum is σ = 11926772. Its totient is φ = 5504652.

The previous prime is 8256973. The next prime is 8257003. The reversal of 8256987 is 7896528.

8256987 is a `hidden beast` number, since 8 + 2 + 569 + 87 = 666.

It is not a de Polignac number, because 8256987 - 2¹⁰ = 8255963 is a prime.

It is a d-powerful number, because it can be written as 8⁴ + 2⁴ + 5⁸ + 6³ + 9² + 8⁷ + 7⁸ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8256907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 458713 + ... + 458730.

Almost surely, 2^8256987 is an apocalyptic number.

8256987 is a deficient number, since it is larger than the sum of its proper divisors (3669785).

8256987 is a wasteful number, since it uses less digits than its factorization.

8256987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917449 (or 917446 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 8256987 is about 2873.4973464404. The cubic root of 8256987 is about 202.1190276506.

The spelling of 8256987 in words is "eight million, two hundred fifty-six thousand, nine hundred eighty-seven".