89635689 has 48 divisors (see below), whose sum is σ = 153264384. Its totient is φ = 49766400.

The previous prime is 89635687. The next prime is 89635697. The reversal of 89635689 is 98653698.

It is not a de Polignac number, because 89635689 - 2¹ = 89635687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89635681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330624 + ... + 330894.

It is an arithmetic number, because the mean of its divisors is an integer number (3193008).

Almost surely, 2^89635689 is an apocalyptic number.

It is an amenable number.

89635689 is a deficient number, since it is larger than the sum of its proper divisors (63628695).

89635689 is a wasteful number, since it uses less digits than its factorization.

89635689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 555 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 89635689 is about 9467.6126346614. The cubic root of 89635689 is about 447.5349809842.

Subtracting 89635689 from its reverse (98653698), we obtain a square (9018009 = 3003²).

It can be divided in two parts, 896 and 35689, that added together give a triangular number (36585 = T₂₇₀).

The spelling of 89635689 in words is "eighty-nine million, six hundred thirty-five thousand, six hundred eighty-nine".