8972139795 has 16 divisors (see below), whose sum is σ = 14384912640. Its totient is φ = 4775311584.

The previous prime is 8972139791. The next prime is 8972139809. The reversal of 8972139795 is 5979312798.

It is not a de Polignac number, because 8972139795 - 2² = 8972139791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8972139791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606805 + ... + 621414.

It is an arithmetic number, because the mean of its divisors is an integer number (899057040).

Almost surely, 2^8972139795 is an apocalyptic number.

8972139795 is a deficient number, since it is larger than the sum of its proper divisors (5412772845).

8972139795 is a wasteful number, since it uses less digits than its factorization.

8972139795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228714.

The product of its digits is 8573040, while the sum is 60.

The square root of 8972139795 is about 94721.3798199752. The cubic root of 8972139795 is about 2077.9352503614.

The spelling of 8972139795 in words is "eight billion, nine hundred seventy-two million, one hundred thirty-nine thousand, seven hundred ninety-five".