89206643 has 4 divisors (see below), whose sum is σ = 90718680. Its totient is φ = 87694608.

The previous prime is 89206631. The next prime is 89206651. The reversal of 89206643 is 34660298.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34660298 = 2 ⋅17330149.

It is a cyclic number.

It is not a de Polignac number, because 89206643 - 2¹⁰ = 89205619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89206597 and 89206606.

It is not an unprimeable number, because it can be changed into a prime (89206603) 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, 755930 + ... + 756047.

It is an arithmetic number, because the mean of its divisors is an integer number (22679670).

Almost surely, 2^89206643 is an apocalyptic number.

89206643 is a deficient number, since it is larger than the sum of its proper divisors (1512037).

89206643 is a wasteful number, since it uses less digits than its factorization.

89206643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512036.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 89206643 is about 9444.9268393143. The cubic root of 89206643 is about 446.8197886571.

The spelling of 89206643 in words is "eighty-nine million, two hundred six thousand, six hundred forty-three".