89372728 has 16 divisors (see below), whose sum is σ = 170415000. Its totient is φ = 43928736.

The previous prime is 89372719. The next prime is 89372729. The reversal of 89372728 is 82727398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89372729) 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, 94203 + ... + 95146.

Almost surely, 2^89372728 is an apocalyptic number.

It is an amenable number.

89372728 is a deficient number, since it is larger than the sum of its proper divisors (81042272).

89372728 is a wasteful number, since it uses less digits than its factorization.

89372728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189414 (or 189410 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 89372728 is about 9453.7150369577. The cubic root of 89372728 is about 447.0969132258.

It can be divided in two parts, 89372 and 728, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 89372728 in words is "eighty-nine million, three hundred seventy-two thousand, seven hundred twenty-eight".