632220403 has 2 divisors, whose sum is σ = 632220404. Its totient is φ = 632220402.

The previous prime is 632220371. The next prime is 632220461. The reversal of 632220403 is 304022236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 632220403 - 2⁵ = 632220371 is a prime.

It is not a weakly prime, because it can be changed into another prime (632220493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316110201 + 316110202.

It is an arithmetic number, because the mean of its divisors is an integer number (316110202).

Almost surely, 2^632220403 is an apocalyptic number.

632220403 is a deficient number, since it is larger than the sum of its proper divisors (1).

632220403 is an equidigital number, since it uses as much as digits as its factorization.

632220403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 632220403 is about 25143.9933781410. The cubic root of 632220403 is about 858.2678326825.

Adding to 632220403 its reverse (304022236), we get a palindrome (936242639).

The spelling of 632220403 in words is "six hundred thirty-two million, two hundred twenty thousand, four hundred three".