89481447 has 24 divisors (see below), whose sum is σ = 141298560. Its totient is φ = 54116880.

The previous prime is 89481397. The next prime is 89481451. The reversal of 89481447 is 74418498.

It is not a de Polignac number, because 89481447 - 2⁶ = 89481383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89481647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87304 + ... + 88322.

It is an arithmetic number, because the mean of its divisors is an integer number (5887440).

Almost surely, 2^89481447 is an apocalyptic number.

89481447 is a deficient number, since it is larger than the sum of its proper divisors (51817113).

89481447 is a wasteful number, since it uses less digits than its factorization.

89481447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1920 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 89481447 is about 9459.4633568718. The cubic root of 89481447 is about 447.2781326862.

The spelling of 89481447 in words is "eighty-nine million, four hundred eighty-one thousand, four hundred forty-seven".