89648172 has 18 divisors (see below), whose sum is σ = 226610748. Its totient is φ = 29882712.

The previous prime is 89648171. The next prime is 89648177. The reversal of 89648172 is 27184698.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (89648171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1245078 + ... + 1245149.

It is an arithmetic number, because the mean of its divisors is an integer number (12589486).

Almost surely, 2^89648172 is an apocalyptic number.

It is an amenable number.

89648172 is an abundant number, since it is smaller than the sum of its proper divisors (136962576).

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

89648172 is a wasteful number, since it uses less digits than its factorization.

89648172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490237 (or 2490232 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 89648172 is about 9468.2718592149. The cubic root of 89648172 is about 447.5557551495. Note that the first 3 decimals are identical.

The spelling of 89648172 in words is "eighty-nine million, six hundred forty-eight thousand, one hundred seventy-two".