89478320 has 20 divisors (see below), whose sum is σ = 208037280. Its totient is φ = 35791296.

The previous prime is 89478287. The next prime is 89478373. The reversal of 89478320 is 2387498.

It is a tau number, because it is divible by the number of its divisors (20).

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, 559160 + ... + 559319.

It is an arithmetic number, because the mean of its divisors is an integer number (10401864).

Almost surely, 2^89478320 is an apocalyptic number.

89478320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89478320 is an abundant number, since it is smaller than the sum of its proper divisors (118558960).

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

89478320 is a wasteful number, since it uses less digits than its factorization.

89478320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118492 (or 1118486 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 89478320 is about 9459.2980712101. The cubic root of 89478320 is about 447.2729224627.

It can be divided in two parts, 89478 and 320, that added together give a palindrome (89798).

The spelling of 89478320 in words is "eighty-nine million, four hundred seventy-eight thousand, three hundred twenty".