8728160993 has 2 divisors, whose sum is σ = 8728160994. Its totient is φ = 8728160992.

The previous prime is 8728160983. The next prime is 8728161007. The reversal of 8728160993 is 3990618278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8018844304 + 709316689 = 89548^2 + 26633^2 .

It is a cyclic number.

It is not a de Polignac number, because 8728160993 - 2¹⁴ = 8728144609 is a prime.

It is not a weakly prime, because it can be changed into another prime (8728160933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364080496 + 4364080497.

It is an arithmetic number, because the mean of its divisors is an integer number (4364080497).

Almost surely, 2^8728160993 is an apocalyptic number.

It is an amenable number.

8728160993 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728160993 is an equidigital number, since it uses as much as digits as its factorization.

8728160993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 8728160993 is about 93424.6273366932. The cubic root of 8728160993 is about 2058.9268448931.

The spelling of 8728160993 in words is "eight billion, seven hundred twenty-eight million, one hundred sixty thousand, nine hundred ninety-three".