89473945 has 16 divisors (see below), whose sum is σ = 123295680. Its totient is φ = 61646400.

The previous prime is 89473939. The next prime is 89473949. The reversal of 89473945 is 54937498.

It is not a de Polignac number, because 89473945 - 2¹⁷ = 89342873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89473949) 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 15 ways as a sum of consecutive naturals, for example, 41766 + ... + 43855.

It is an arithmetic number, because the mean of its divisors is an integer number (7705980).

Almost surely, 2^89473945 is an apocalyptic number.

It is an amenable number.

89473945 is a deficient number, since it is larger than the sum of its proper divisors (33821735).

89473945 is a wasteful number, since it uses less digits than its factorization.

89473945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85656.

The product of its digits is 1088640, while the sum is 49.

The square root of 89473945 is about 9459.0668144379. The cubic root of 89473945 is about 447.2656326114.

The spelling of 89473945 in words is "eighty-nine million, four hundred seventy-three thousand, nine hundred forty-five".