89747 has 4 divisors (see below), whose sum is σ = 102576. Its totient is φ = 76920.

The previous prime is 89689. The next prime is 89753. The reversal of 89747 is 74798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 89747 - 2⁸ = 89491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89767) 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, 6404 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (25644).

2⁸⁹⁷⁴⁷ is an apocalyptic number.

89747 is a deficient number, since it is larger than the sum of its proper divisors (12829).

89747 is a wasteful number, since it uses less digits than its factorization.

89747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828.

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

The square root of 89747 is about 299.5780365781. The cubic root of 89747 is about 44.7720156333.

The spelling of 89747 in words is "eighty-nine thousand, seven hundred forty-seven".