89239429 has 2 divisors, whose sum is σ = 89239430. Its totient is φ = 89239428.

The previous prime is 89239399. The next prime is 89239433. The reversal of 89239429 is 92493298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79691329 + 9548100 = 8927^2 + 3090^2 .

It is a cyclic number.

It is not a de Polignac number, because 89239429 - 2¹⁹ = 88715141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89239489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44619714 + 44619715.

It is an arithmetic number, because the mean of its divisors is an integer number (44619715).

Almost surely, 2^89239429 is an apocalyptic number.

It is an amenable number.

89239429 is a deficient number, since it is larger than the sum of its proper divisors (1).

89239429 is an equidigital number, since it uses as much as digits as its factorization.

89239429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 89239429 is about 9446.6623206294. The cubic root of 89239429 is about 446.8745216485.

The spelling of 89239429 in words is "eighty-nine million, two hundred thirty-nine thousand, four hundred twenty-nine".