8978072399 has 8 divisors (see below), whose sum is σ = 9177723840. Its totient is φ = 8778780576.

The previous prime is 8978072393. The next prime is 8978072407. The reversal of 8978072399 is 9932708798.

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

It is a cyclic number.

It is not a de Polignac number, because 8978072399 - 2²⁰ = 8977023823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8978072393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39104 + ... + 139589.

It is an arithmetic number, because the mean of its divisors is an integer number (1147215480).

Almost surely, 2^8978072399 is an apocalyptic number.

8978072399 is a deficient number, since it is larger than the sum of its proper divisors (199651441).

8978072399 is a wasteful number, since it uses less digits than its factorization.

8978072399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179809.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The square root of 8978072399 is about 94752.6907216887. The cubic root of 8978072399 is about 2078.3931437647.

The spelling of 8978072399 in words is "eight billion, nine hundred seventy-eight million, seventy-two thousand, three hundred ninety-nine".