8971487 has 8 divisors (see below), whose sum is σ = 10291872. Its totient is φ = 7660800.

The previous prime is 8971483. The next prime is 8971499. The reversal of 8971487 is 7841798.

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

It is not a de Polignac number, because 8971487 - 2² = 8971483 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 (8971483) 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, 314 + ... + 4247.

It is an arithmetic number, because the mean of its divisors is an integer number (1286484).

Almost surely, 2^8971487 is an apocalyptic number.

8971487 is a deficient number, since it is larger than the sum of its proper divisors (1320385).

8971487 is a wasteful number, since it uses less digits than its factorization.

8971487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849.

The product of its digits is 112896, while the sum is 44.

The square root of 8971487 is about 2995.2440635114. The cubic root of 8971487 is about 207.7884853664.

It can be divided in two parts, 897148 and 7, that multiplied together give a square (6280036 = 2506²).

The spelling of 8971487 in words is "eight million, nine hundred seventy-one thousand, four hundred eighty-seven".