89613 has 8 divisors (see below), whose sum is σ = 132800. Its totient is φ = 59724.

The previous prime is 89611. The next prime is 89627. The reversal of 89613 is 31698.

It is not a de Polignac number, because 89613 - 2¹ = 89611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3319 = 89613 / (8 + 9 + 6 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1633 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (16600).

2⁸⁹⁶¹³ is an apocalyptic number.

It is an amenable number.

89613 is a deficient number, since it is larger than the sum of its proper divisors (43187).

89613 is a wasteful number, since it uses less digits than its factorization.

89613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 89613 is about 299.3543051302. The cubic root of 89613 is about 44.7497217090.

Adding to 89613 its product of digits (1296), we get a palindrome (90909).

It can be divided in two parts, 896 and 13, that added together give a palindrome (909).

The spelling of 89613 in words is "eighty-nine thousand, six hundred thirteen".