8728828081 has 4 divisors (see below), whose sum is σ = 8729017200. Its totient is φ = 8728638964.

The previous prime is 8728828033. The next prime is 8728828099. The reversal of 8728828081 is 1808288278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1808288278 = 2 ⋅904144139.

It is a cyclic number.

It is not a de Polignac number, because 8728828081 - 2²³ = 8720439473 is a prime.

It is a super-2 number, since 2×8728828081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8728828681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25410 + ... + 134548.

It is an arithmetic number, because the mean of its divisors is an integer number (2182254300).

Almost surely, 2^8728828081 is an apocalyptic number.

It is an amenable number.

8728828081 is a deficient number, since it is larger than the sum of its proper divisors (189119).

8728828081 is a wasteful number, since it uses less digits than its factorization.

8728828081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189118.

The product of its (nonzero) digits is 917504, while the sum is 52.

The square root of 8728828081 is about 93428.1974620082. The cubic root of 8728828081 is about 2058.9792977295.

The spelling of 8728828081 in words is "eight billion, seven hundred twenty-eight million, eight hundred twenty-eight thousand, eighty-one".