89679 has 8 divisors (see below), whose sum is σ = 120960. Its totient is φ = 59096.

The previous prime is 89671. The next prime is 89681. The reversal of 89679 is 97698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89679 - 2³ = 89671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89671) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 412 + ... + 590.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2⁸⁹⁶⁷⁹ is an apocalyptic number.

89679 is a deficient number, since it is larger than the sum of its proper divisors (31281).

89679 is a wasteful number, since it uses less digits than its factorization.

89679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349.

The product of its digits is 27216, while the sum is 39.

The square root of 89679 is about 299.4645221057. The cubic root of 89679 is about 44.7607050739.

The spelling of 89679 in words is "eighty-nine thousand, six hundred seventy-nine".