8978713 has 4 divisors (see below), whose sum is σ = 9197748. Its totient is φ = 8759680.

The previous prime is 8978707. The next prime is 8978743. The reversal of 8978713 is 3178798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4173849 + 4804864 = 2043^2 + 2192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8978713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8978713.

It is not an unprimeable number, because it can be changed into a prime (8978743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109456 + ... + 109537.

It is an arithmetic number, because the mean of its divisors is an integer number (2299437).

Almost surely, 2^8978713 is an apocalyptic number.

It is an amenable number.

8978713 is a deficient number, since it is larger than the sum of its proper divisors (219035).

8978713 is a wasteful number, since it uses less digits than its factorization.

8978713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219034.

The product of its digits is 84672, while the sum is 43.

The square root of 8978713 is about 2996.4500663285. The cubic root of 8978713 is about 207.8442574905.

The spelling of 8978713 in words is "eight million, nine hundred seventy-eight thousand, seven hundred thirteen".