8778971 has 4 divisors (see below), whose sum is σ = 8785152. Its totient is φ = 8772792.

The previous prime is 8778947. The next prime is 8778997. The reversal of 8778971 is 1798778.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8778971 - 2¹⁰ = 8777947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8778901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (2196288).

Almost surely, 2^8778971 is an apocalyptic number.

8778971 is a deficient number, since it is larger than the sum of its proper divisors (6181).

8778971 is a wasteful number, since it uses less digits than its factorization.

8778971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180.

The product of its digits is 197568, while the sum is 47.

The square root of 8778971 is about 2962.9328375783. The cubic root of 8778971 is about 206.2914387506.

The spelling of 8778971 in words is "eight million, seven hundred seventy-eight thousand, nine hundred seventy-one".