43630001 has 2 divisors, whose sum is σ = 43630002. Its totient is φ = 43630000.

The previous prime is 43629991. The next prime is 43630019. The reversal of 43630001 is 10003634.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30813601 + 12816400 = 5551^2 + 3580^2 .

It is a cyclic number.

It is not a de Polignac number, because 43630001 - 2¹⁴ = 43613617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43630021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21815000 + 21815001.

It is an arithmetic number, because the mean of its divisors is an integer number (21815001).

Almost surely, 2^43630001 is an apocalyptic number.

It is an amenable number.

43630001 is a deficient number, since it is larger than the sum of its proper divisors (1).

43630001 is an equidigital number, since it uses as much as digits as its factorization.

43630001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 43630001 is about 6605.3009772455. The cubic root of 43630001 is about 352.0424820671.

Adding to 43630001 its reverse (10003634), we get a palindrome (53633635).

The spelling of 43630001 in words is "forty-three million, six hundred thirty thousand, one".