89439127 has 2 divisors, whose sum is σ = 89439128. Its totient is φ = 89439126.

The previous prime is 89439113. The next prime is 89439131. The reversal of 89439127 is 72193498.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89439127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89439107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44719563 + 44719564.

It is an arithmetic number, because the mean of its divisors is an integer number (44719564).

Almost surely, 2^89439127 is an apocalyptic number.

89439127 is a deficient number, since it is larger than the sum of its proper divisors (1).

89439127 is an equidigital number, since it uses as much as digits as its factorization.

89439127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 89439127 is about 9457.2261789597. The cubic root of 89439127 is about 447.2076085865.

The spelling of 89439127 in words is "eighty-nine million, four hundred thirty-nine thousand, one hundred twenty-seven".