8971715 has 4 divisors (see below), whose sum is σ = 10766064. Its totient is φ = 7177368.

The previous prime is 8971709. The next prime is 8971727. The reversal of 8971715 is 5171798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5171798 = 2 ⋅2585899.

It is a cyclic number.

It is not a de Polignac number, because 8971715 - 2¹⁰ = 8970691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897167 + ... + 897176.

It is an arithmetic number, because the mean of its divisors is an integer number (2691516).

Almost surely, 2^8971715 is an apocalyptic number.

8971715 is a deficient number, since it is larger than the sum of its proper divisors (1794349).

8971715 is a wasteful number, since it uses less digits than its factorization.

8971715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794348.

The product of its digits is 17640, while the sum is 38.

The square root of 8971715 is about 2995.2821236071. The cubic root of 8971715 is about 207.7902455864.

The spelling of 8971715 in words is "eight million, nine hundred seventy-one thousand, seven hundred fifteen".