89973128 has 16 divisors (see below), whose sum is σ = 192799680. Its totient is φ = 38559888.

The previous prime is 89973101. The next prime is 89973131. The reversal of 89973128 is 82137998.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803276 + ... + 803387.

It is an arithmetic number, because the mean of its divisors is an integer number (12049980).

Almost surely, 2^89973128 is an apocalyptic number.

It is an amenable number.

89973128 is an abundant number, since it is smaller than the sum of its proper divisors (102826552).

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

89973128 is a wasteful number, since it uses less digits than its factorization.

89973128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606676 (or 1606672 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 89973128 is about 9485.4165960173. The cubic root of 89973128 is about 448.0958686203.

The spelling of 89973128 in words is "eighty-nine million, nine hundred seventy-three thousand, one hundred twenty-eight".