89881444 has 6 divisors (see below), whose sum is σ = 157292534. Its totient is φ = 44940720.

The previous prime is 89881439. The next prime is 89881459. The reversal of 89881444 is 44418898.

It can be written as a sum of positive squares in only one way, i.e., 81540900 + 8340544 = 9030^2 + 2888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 89881394 and 89881403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11235177 + ... + 11235184.

Almost surely, 2^89881444 is an apocalyptic number.

It is an amenable number.

89881444 is a deficient number, since it is larger than the sum of its proper divisors (67411090).

89881444 is a wasteful number, since it uses less digits than its factorization.

89881444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22470365 (or 22470363 counting only the distinct ones).

The product of its digits is 294912, while the sum is 46.

The square root of 89881444 is about 9480.5824715573. The cubic root of 89881444 is about 447.9436113658.

The spelling of 89881444 in words is "eighty-nine million, eight hundred eighty-one thousand, four hundred forty-four".