89663817 has 8 divisors (see below), whose sum is σ = 120119200. Its totient is φ = 59492160.

The previous prime is 89663807. The next prime is 89663837. The reversal of 89663817 is 71836698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89663817 - 2¹² = 89659721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89663807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70192 + ... + 71457.

It is an arithmetic number, because the mean of its divisors is an integer number (15014900).

Almost surely, 2^89663817 is an apocalyptic number.

It is an amenable number.

89663817 is a deficient number, since it is larger than the sum of its proper divisors (30455383).

89663817 is a wasteful number, since it uses less digits than its factorization.

89663817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141863.

The product of its digits is 435456, while the sum is 48.

The square root of 89663817 is about 9469.0980035059. The cubic root of 89663817 is about 447.5817887813.

The spelling of 89663817 in words is "eighty-nine million, six hundred sixty-three thousand, eight hundred seventeen".