89400004605 has 24 divisors (see below), whose sum is σ = 154982688120. Its totient is φ = 47673024000.

The previous prime is 89400004553. The next prime is 89400004607. The reversal of 89400004605 is 50640000498.

89400004605 is a `hidden beast` number, since 8 + 9 + 40 + 0 + 0 + 0 + 4 + 605 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 560837124 + 88839167481 = 23682^2 + 298059^2 .

It is not a de Polignac number, because 89400004605 - 2⁹ = 89400004093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89400004605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89400004607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173161 + ... + 456929.

It is an arithmetic number, because the mean of its divisors is an integer number (6457612005).

Almost surely, 2^89400004605 is an apocalyptic number.

It is an amenable number.

89400004605 is a deficient number, since it is larger than the sum of its proper divisors (65582683515).

89400004605 is a wasteful number, since it uses less digits than its factorization.

89400004605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290781 (or 290778 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 89400004605 in words is "eighty-nine billion, four hundred million, four thousand, six hundred five".