8281487 has 2 divisors, whose sum is σ = 8281488. Its totient is φ = 8281486.

The previous prime is 8281477. The next prime is 8281517. The reversal of 8281487 is 7841828.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8281487 - 2⁶ = 8281423 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8281487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8281457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140743 + 4140744.

It is an arithmetic number, because the mean of its divisors is an integer number (4140744).

Almost surely, 2^8281487 is an apocalyptic number.

8281487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8281487 is an equidigital number, since it uses as much as digits as its factorization.

8281487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 38.

The square root of 8281487 is about 2877.7572864993. The cubic root of 8281487 is about 202.3187383718.

The spelling of 8281487 in words is "eight million, two hundred eighty-one thousand, four hundred eighty-seven".