89948447 has 4 divisors (see below), whose sum is σ = 89993400. Its totient is φ = 89903496.

The previous prime is 89948431. The next prime is 89948461. The reversal of 89948447 is 74484998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89948447 - 2⁴ = 89948431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89948477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19328 + ... + 23525.

It is an arithmetic number, because the mean of its divisors is an integer number (22498350).

Almost surely, 2^89948447 is an apocalyptic number.

89948447 is a deficient number, since it is larger than the sum of its proper divisors (44953).

89948447 is a wasteful number, since it uses less digits than its factorization.

89948447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44952.

The product of its digits is 2322432, while the sum is 53.

The square root of 89948447 is about 9484.1155096298. The cubic root of 89948447 is about 448.0548916983.

The spelling of 89948447 in words is "eighty-nine million, nine hundred forty-eight thousand, four hundred forty-seven".