632223401 has 2 divisors, whose sum is σ = 632223402. Its totient is φ = 632223400.

The previous prime is 632223391. The next prime is 632223413. The reversal of 632223401 is 104322236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470933401 + 161290000 = 21701^2 + 12700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-632223401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (632223451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316111700 + 316111701.

It is an arithmetic number, because the mean of its divisors is an integer number (316111701).

Almost surely, 2^632223401 is an apocalyptic number.

It is an amenable number.

632223401 is a deficient number, since it is larger than the sum of its proper divisors (1).

632223401 is an equidigital number, since it uses as much as digits as its factorization.

632223401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 632223401 is about 25144.0529946944. The cubic root of 632223401 is about 858.2691893206.

Adding to 632223401 its reverse (104322236), we get a palindrome (736545637).

The spelling of 632223401 in words is "six hundred thirty-two million, two hundred twenty-three thousand, four hundred one".