70443229 has 2 divisors, whose sum is σ = 70443230. Its totient is φ = 70443228.

The previous prime is 70443211. The next prime is 70443239. The reversal of 70443229 is 92234407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48372025 + 22071204 = 6955^2 + 4698^2 .

It is an emirp because it is prime and its reverse (92234407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70443229 - 2¹⁷ = 70312157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70443229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70443239) 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, 35221614 + 35221615.

It is an arithmetic number, because the mean of its divisors is an integer number (35221615).

Almost surely, 2^70443229 is an apocalyptic number.

It is an amenable number.

70443229 is a deficient number, since it is larger than the sum of its proper divisors (1).

70443229 is an equidigital number, since it uses as much as digits as its factorization.

70443229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 70443229 is about 8393.0464671655. The cubic root of 70443229 is about 412.9965448689.

The spelling of 70443229 in words is "seventy million, four hundred forty-three thousand, two hundred twenty-nine".