886669728 has 96 divisors (see below), whose sum is σ = 2665192320. Its totient is φ = 252840960.

The previous prime is 886669723. The next prime is 886669733. The reversal of 886669728 is 827966688.

It is a Cunningham number, because it is equal to 29777²-1.

It is an interprime number because it is at equal distance from previous prime (886669723) and next prime (886669733).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (886669723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475518 + ... + 477378.

It is an arithmetic number, because the mean of its divisors is an integer number (27762420).

Almost surely, 2^886669728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 886669728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332596160).

886669728 is an abundant number, since it is smaller than the sum of its proper divisors (1778522592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

886669728 is a wasteful number, since it uses less digits than its factorization.

886669728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2582 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 60.

The square root of 886669728 is about 29776.9999832085. Note that the first 4 decimals coincide. The cubic root of 886669728 is about 960.6989007838.

The spelling of 886669728 in words is "eight hundred eighty-six million, six hundred sixty-nine thousand, seven hundred twenty-eight".