89866493 has 4 divisors (see below), whose sum is σ = 89889408. Its totient is φ = 89843580.

The previous prime is 89866487. The next prime is 89866501. The reversal of 89866493 is 39466898.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39466898 = 2 ⋅19733449.

It is a cyclic number.

It is not a de Polignac number, because 89866493 - 2¹⁴ = 89850109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89866423) 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, 3923 + ... + 13968.

It is an arithmetic number, because the mean of its divisors is an integer number (22472352).

Almost surely, 2^89866493 is an apocalyptic number.

It is an amenable number.

89866493 is a deficient number, since it is larger than the sum of its proper divisors (22915).

89866493 is a wasteful number, since it uses less digits than its factorization.

89866493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22914.

The product of its digits is 2239488, while the sum is 53.

The square root of 89866493 is about 9479.7939323595. The cubic root of 89866493 is about 447.9187728081.

The spelling of 89866493 in words is "eighty-nine million, eight hundred sixty-six thousand, four hundred ninety-three".