88690229 has 2 divisors, whose sum is σ = 88690230. Its totient is φ = 88690228.

The previous prime is 88690223. The next prime is 88690249. The reversal of 88690229 is 92209688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88548100 + 142129 = 9410^2 + 377^2 .

It is a cyclic number.

It is not a de Polignac number, because 88690229 - 2⁴ = 88690213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88690229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88690223) 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, 44345114 + 44345115.

It is an arithmetic number, because the mean of its divisors is an integer number (44345115).

Almost surely, 2^88690229 is an apocalyptic number.

It is an amenable number.

88690229 is a deficient number, since it is larger than the sum of its proper divisors (1).

88690229 is an equidigital number, since it uses as much as digits as its factorization.

88690229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 88690229 is about 9417.5489911123. The cubic root of 88690229 is about 445.9559117070.

The spelling of 88690229 in words is "eighty-eight million, six hundred ninety thousand, two hundred twenty-nine".