89418829 has 2 divisors, whose sum is σ = 89418830. Its totient is φ = 89418828.

The previous prime is 89418809. The next prime is 89418841. The reversal of 89418829 is 92881498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 44555625 = 6698^2 + 6675^2 .

It is a cyclic number.

It is not a de Polignac number, because 89418829 - 2⁷ = 89418701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89418809) 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, 44709414 + 44709415.

It is an arithmetic number, because the mean of its divisors is an integer number (44709415).

Almost surely, 2^89418829 is an apocalyptic number.

It is an amenable number.

89418829 is a deficient number, since it is larger than the sum of its proper divisors (1).

89418829 is an equidigital number, since it uses as much as digits as its factorization.

89418829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 49.

The square root of 89418829 is about 9456.1529704209. The cubic root of 89418829 is about 447.1737751211.

The spelling of 89418829 in words is "eighty-nine million, four hundred eighteen thousand, eight hundred twenty-nine".