89668633 has 4 divisors (see below), whose sum is σ = 91360548. Its totient is φ = 87976720.

The previous prime is 89668603. The next prime is 89668637. The reversal of 89668633 is 33686698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33686698 = 2 ⋅16843349.

It can be written as a sum of positive squares in 2 ways, for example, as 69355584 + 20313049 = 8328^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 89668633 - 2⁹ = 89668121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89668637) 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, 845878 + ... + 845983.

It is an arithmetic number, because the mean of its divisors is an integer number (22840137).

Almost surely, 2^89668633 is an apocalyptic number.

It is an amenable number.

89668633 is a deficient number, since it is larger than the sum of its proper divisors (1691915).

89668633 is a wasteful number, since it uses less digits than its factorization.

89668633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691914.

The product of its digits is 1119744, while the sum is 49.

The square root of 89668633 is about 9469.3523009760. The cubic root of 89668633 is about 447.5898021040.

The spelling of 89668633 in words is "eighty-nine million, six hundred sixty-eight thousand, six hundred thirty-three".