88129728 has 56 divisors (see below), whose sum is σ = 259090160. Its totient is φ = 29376000.

The previous prime is 88129693. The next prime is 88129729. The reversal of 88129728 is 82792188.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (88129729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23773 + ... + 27228.

It is an arithmetic number, because the mean of its divisors is an integer number (4626610).

Almost surely, 2^88129728 is an apocalyptic number.

It is an amenable number.

88129728 is an abundant number, since it is smaller than the sum of its proper divisors (170960432).

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

88129728 is a wasteful number, since it uses less digits than its factorization.

88129728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51022 (or 51006 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 88129728 is about 9387.7434988393. The cubic root of 88129728 is about 445.0144808653.

The spelling of 88129728 in words is "eighty-eight million, one hundred twenty-nine thousand, seven hundred twenty-eight".