89105629 has 2 divisors, whose sum is σ = 89105630. Its totient is φ = 89105628.

The previous prime is 89105617. The next prime is 89105659. The reversal of 89105629 is 92650198.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88322404 + 783225 = 9398^2 + 885^2 .

It is a cyclic number.

It is not a de Polignac number, because 89105629 - 2²¹ = 87008477 is a prime.

It is a Chen prime.

It is equal to p_5168299 and since 89105629 and 5168299 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 89105591 and 89105600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89105659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44552814 + 44552815.

It is an arithmetic number, because the mean of its divisors is an integer number (44552815).

Almost surely, 2^89105629 is an apocalyptic number.

It is an amenable number.

89105629 is a deficient number, since it is larger than the sum of its proper divisors (1).

89105629 is an equidigital number, since it uses as much as digits as its factorization.

89105629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 89105629 is about 9439.5777977619. The cubic root of 89105629 is about 446.6510713968.

The spelling of 89105629 in words is "eighty-nine million, one hundred five thousand, six hundred twenty-nine".