89439927 has 16 divisors (see below), whose sum is σ = 121021920. Its totient is φ = 58747392.

The previous prime is 89439913. The next prime is 89439937. The reversal of 89439927 is 72993498.

It is not a de Polignac number, because 89439927 - 2⁶ = 89439863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89439927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89439937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121653 + ... + 122385.

It is an arithmetic number, because the mean of its divisors is an integer number (7563870).

Almost surely, 2^89439927 is an apocalyptic number.

89439927 is a deficient number, since it is larger than the sum of its proper divisors (31581993).

89439927 is a wasteful number, since it uses less digits than its factorization.

89439927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282.

The product of its digits is 979776, while the sum is 51.

The square root of 89439927 is about 9457.2684745649. The cubic root of 89439927 is about 447.2089419515.

The spelling of 89439927 in words is "eighty-nine million, four hundred thirty-nine thousand, nine hundred twenty-seven".