96639 has 4 divisors (see below), whose sum is σ = 128856. Its totient is φ = 64424.

The previous prime is 96601. The next prime is 96643. The reversal of 96639 is 93669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93669 = 3 ⋅31223.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-96639 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16104 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (32214).

2⁹⁶⁶³⁹ is an apocalyptic number.

96639 is a deficient number, since it is larger than the sum of its proper divisors (32217).

96639 is a wasteful number, since it uses less digits than its factorization.

96639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32216.

The product of its digits is 8748, while the sum is 33.

The square root of 96639 is about 310.8681392488. The cubic root of 96639 is about 45.8899385107.

The spelling of 96639 in words is "ninety-six thousand, six hundred thirty-nine".