88889428 has 24 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 43276800.

The previous prime is 88889417. The next prime is 88889443. The reversal of 88889428 is 82498888.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76653 + ... + 77803.

It is an arithmetic number, because the mean of its divisors is an integer number (6652800).

Almost surely, 2^88889428 is an apocalyptic number.

It is an amenable number.

88889428 is a deficient number, since it is larger than the sum of its proper divisors (70777772).

88889428 is a wasteful number, since it uses less digits than its factorization.

88889428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1645 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 55.

The square root of 88889428 is about 9428.1190064615. The cubic root of 88889428 is about 446.2895356331.

It can be divided in two parts, 8 and 8889428, that added together give a triangular number (8889436 = T₄₂₁₆).

The spelling of 88889428 in words is "eighty-eight million, eight hundred eighty-nine thousand, four hundred twenty-eight".