89473728 has 28 divisors (see below), whose sum is σ = 236733080. Its totient is φ = 29824512.

The previous prime is 89473723. The next prime is 89473753. The reversal of 89473728 is 82737498.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89473723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232813 + ... + 233196.

Almost surely, 2^89473728 is an apocalyptic number.

It is an amenable number.

89473728 is an abundant number, since it is smaller than the sum of its proper divisors (147259352).

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

89473728 is a wasteful number, since it uses less digits than its factorization.

89473728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466024 (or 466014 counting only the distinct ones).

The product of its digits is 677376, while the sum is 48.

The square root of 89473728 is about 9459.0553439548. The cubic root of 89473728 is about 447.2652710286.

The spelling of 89473728 in words is "eighty-nine million, four hundred seventy-three thousand, seven hundred twenty-eight".