89593729 has 2 divisors, whose sum is σ = 89593730. Its totient is φ = 89593728.

The previous prime is 89593727. The next prime is 89593739. The reversal of 89593729 is 92739598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54464400 + 35129329 = 7380^2 + 5927^2 .

It is a cyclic number.

It is not a de Polignac number, because 89593729 - 2¹ = 89593727 is a prime.

It is a super-2 number, since 2×89593729² = 16054072552250882, which contains 22 as substring.

Together with 89593727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (89593727) 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 as a sum of consecutive naturals, namely, 44796864 + 44796865.

It is an arithmetic number, because the mean of its divisors is an integer number (44796865).

Almost surely, 2^89593729 is an apocalyptic number.

It is an amenable number.

89593729 is a deficient number, since it is larger than the sum of its proper divisors (1).

89593729 is an equidigital number, since it uses as much as digits as its factorization.

89593729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 52.

The square root of 89593729 is about 9465.3963995176. The cubic root of 89593729 is about 447.4651371569.

The spelling of 89593729 in words is "eighty-nine million, five hundred ninety-three thousand, seven hundred twenty-nine".