8427487 has 8 divisors (see below), whose sum is σ = 8843040. Its totient is φ = 8020320.

The previous prime is 8427481. The next prime is 8427491. The reversal of 8427487 is 7847248.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8427487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8427481) 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, 13 + ... + 4105.

It is an arithmetic number, because the mean of its divisors is an integer number (1105380).

Almost surely, 2^8427487 is an apocalyptic number.

8427487 is a deficient number, since it is larger than the sum of its proper divisors (415553).

8427487 is a wasteful number, since it uses less digits than its factorization.

8427487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193.

The product of its digits is 100352, while the sum is 40.

The square root of 8427487 is about 2903.0134343471. The cubic root of 8427487 is about 203.5007576232.

The spelling of 8427487 in words is "eight million, four hundred twenty-seven thousand, four hundred eighty-seven".