420963233 has 2 divisors, whose sum is σ = 420963234. Its totient is φ = 420963232.

The previous prime is 420963209. The next prime is 420963239. The reversal of 420963233 is 332369024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337934689 + 83028544 = 18383^2 + 9112^2 .

It is a cyclic number.

It is not a de Polignac number, because 420963233 - 2⁸ = 420962977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420963233.

It is not a weakly prime, because it can be changed into another prime (420963239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210481616 + 210481617.

It is an arithmetic number, because the mean of its divisors is an integer number (210481617).

Almost surely, 2^420963233 is an apocalyptic number.

It is an amenable number.

420963233 is a deficient number, since it is larger than the sum of its proper divisors (1).

420963233 is an equidigital number, since it uses as much as digits as its factorization.

420963233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 420963233 is about 20517.3885521525. The cubic root of 420963233 is about 749.4593039203.

The spelling of 420963233 in words is "four hundred twenty million, nine hundred sixty-three thousand, two hundred thirty-three".