2978608717 has 24 divisors (see below), whose sum is σ = 3499070400. Its totient is φ = 2528064000.

The previous prime is 2978608679. The next prime is 2978608723. The reversal of 2978608717 is 7178068792.

It is a happy number.

It is not a de Polignac number, because 2978608717 - 2¹⁵ = 2978575949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978608727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446893 + ... + 2448109.

It is an arithmetic number, because the mean of its divisors is an integer number (145794600).

Almost surely, 2^2978608717 is an apocalyptic number.

It is an amenable number.

2978608717 is a deficient number, since it is larger than the sum of its proper divisors (520461683).

2978608717 is a wasteful number, since it uses less digits than its factorization.

2978608717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 55.

The square root of 2978608717 is about 54576.6316018129. The cubic root of 2978608717 is about 1438.8134382102.

The spelling of 2978608717 in words is "two billion, nine hundred seventy-eight million, six hundred eight thousand, seven hundred seventeen".