89993129 has 2 divisors, whose sum is σ = 89993130. Its totient is φ = 89993128.

The previous prime is 89993051. The next prime is 89993147. The reversal of 89993129 is 92139998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65983129 + 24010000 = 8123^2 + 4900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89993129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89993429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44996564 + 44996565.

It is an arithmetic number, because the mean of its divisors is an integer number (44996565).

Almost surely, 2^89993129 is an apocalyptic number.

It is an amenable number.

89993129 is a deficient number, since it is larger than the sum of its proper divisors (1).

89993129 is an equidigital number, since it uses as much as digits as its factorization.

89993129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 50.

The square root of 89993129 is about 9486.4708400964. The cubic root of 89993129 is about 448.1290700203.

The spelling of 89993129 in words is "eighty-nine million, nine hundred ninety-three thousand, one hundred twenty-nine".