89774 has 4 divisors (see below), whose sum is σ = 134664. Its totient is φ = 44886.

The previous prime is 89767. The next prime is 89779. The reversal of 89774 is 47798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47798 = 2 ⋅23899.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89774.

It is not an unprimeable number, because it can be changed into a prime (89779) by changing a digit.

89774 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 22442 + ... + 22445.

It is an arithmetic number, because the mean of its divisors is an integer number (33666).

2⁸⁹⁷⁷⁴ is an apocalyptic number.

89774 is a deficient number, since it is larger than the sum of its proper divisors (44890).

89774 is a wasteful number, since it uses less digits than its factorization.

89774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44889.

The product of its digits is 14112, while the sum is 35.

The square root of 89774 is about 299.6230965730. The cubic root of 89774 is about 44.7765050061.

It can be divided in two parts, 89 and 774, that multiplied together give a palindrome (68886).

The spelling of 89774 in words is "eighty-nine thousand, seven hundred seventy-four".