89447172 has 24 divisors (see below), whose sum is σ = 209017536. Its totient is φ = 29771808.

The previous prime is 89447147. The next prime is 89447209. The reversal of 89447172 is 27174498.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3598 + ... + 13850.

It is an arithmetic number, because the mean of its divisors is an integer number (8709064).

Almost surely, 2^89447172 is an apocalyptic number.

It is an amenable number.

89447172 is an abundant number, since it is smaller than the sum of its proper divisors (119570364).

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

89447172 is a wasteful number, since it uses less digits than its factorization.

89447172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987 (or 10985 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 89447172 is about 9457.6515055272. The cubic root of 89447172 is about 447.2210168768.

The spelling of 89447172 in words is "eighty-nine million, four hundred forty-seven thousand, one hundred seventy-two".