89761229 has 2 divisors, whose sum is σ = 89761230. Its totient is φ = 89761228.

The previous prime is 89761219. The next prime is 89761237. The reversal of 89761229 is 92216798.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46267204 + 43494025 = 6802^2 + 6595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89761229 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89761229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89761219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44880614 + 44880615.

It is an arithmetic number, because the mean of its divisors is an integer number (44880615).

Almost surely, 2^89761229 is an apocalyptic number.

It is an amenable number.

89761229 is a deficient number, since it is larger than the sum of its proper divisors (1).

89761229 is an equidigital number, since it uses as much as digits as its factorization.

89761229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 89761229 is about 9474.2402861654. The cubic root of 89761229 is about 447.7438164496.

It can be divided in two parts, 897 and 61229, that added together give a palindrome (62126).

The spelling of 89761229 in words is "eighty-nine million, seven hundred sixty-one thousand, two hundred twenty-nine".