89609000461 has 4 divisors (see below), whose sum is σ = 89629897500. Its totient is φ = 89588103424.

The previous prime is 89609000443. The next prime is 89609000581. The reversal of 89609000461 is 16400090698.

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 35602029225 + 54006971236 = 188685^2 + 232394^2 .

It is a cyclic number.

It is not a de Polignac number, because 89609000461 - 2⁷ = 89609000333 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 (89609000161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10442086 + ... + 10450663.

It is an arithmetic number, because the mean of its divisors is an integer number (22407474375).

Almost surely, 2^89609000461 is an apocalyptic number.

It is an amenable number.

89609000461 is a deficient number, since it is larger than the sum of its proper divisors (20897039).

89609000461 is a wasteful number, since it uses less digits than its factorization.

89609000461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20897038.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 89609000461 in words is "eighty-nine billion, six hundred nine million, four hundred sixty-one", and thus it is an aban number.