89609473 has 4 divisors (see below), whose sum is σ = 90533380. Its totient is φ = 88685568.

The previous prime is 89609467. The next prime is 89609503. The reversal of 89609473 is 37490698.

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

It can be written as a sum of positive squares in 2 ways, for example, as 71436304 + 18173169 = 8452^2 + 4263^2 .

It is a cyclic number.

It is not a de Polignac number, because 89609473 - 2⁵ = 89609441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89609573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461808 + ... + 462001.

It is an arithmetic number, because the mean of its divisors is an integer number (22633345).

Almost surely, 2^89609473 is an apocalyptic number.

It is an amenable number.

89609473 is a deficient number, since it is larger than the sum of its proper divisors (923907).

89609473 is an equidigital number, since it uses as much as digits as its factorization.

89609473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923906.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 89609473 is about 9466.2280238752. The cubic root of 89609473 is about 447.4913461285.

The spelling of 89609473 in words is "eighty-nine million, six hundred nine thousand, four hundred seventy-three".