89281755 has 12 divisors (see below), whose sum is σ = 154755120. Its totient is φ = 47616912.

The previous prime is 89281729. The next prime is 89281757. The reversal of 89281755 is 55718298.

It is a happy number.

It is not a de Polignac number, because 89281755 - 2⁸ = 89281499 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1984039 = 89281755 / (8 + 9 + 2 + 8 + 1 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 89281755.

It is not an unprimeable number, because it can be changed into a prime (89281757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 991975 + ... + 992064.

It is an arithmetic number, because the mean of its divisors is an integer number (12896260).

Almost surely, 2^89281755 is an apocalyptic number.

89281755 is a deficient number, since it is larger than the sum of its proper divisors (65473365).

89281755 is a wasteful number, since it uses less digits than its factorization.

89281755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984050 (or 1984047 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 89281755 is about 9448.9023172007. The cubic root of 89281755 is about 446.9451609076.

The spelling of 89281755 in words is "eighty-nine million, two hundred eighty-one thousand, seven hundred fifty-five".