89375729 has 2 divisors, whose sum is σ = 89375730. Its totient is φ = 89375728.

The previous prime is 89375719. The next prime is 89375743. The reversal of 89375729 is 92757398.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52591504 + 36784225 = 7252^2 + 6065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89375729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89375719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44687864 + 44687865.

It is an arithmetic number, because the mean of its divisors is an integer number (44687865).

Almost surely, 2^89375729 is an apocalyptic number.

It is an amenable number.

89375729 is a deficient number, since it is larger than the sum of its proper divisors (1).

89375729 is an equidigital number, since it uses as much as digits as its factorization.

89375729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 89375729 is about 9453.8737562969. The cubic root of 89375729 is about 447.1019174474.

The spelling of 89375729 in words is "eighty-nine million, three hundred seventy-five thousand, seven hundred twenty-nine".