463255721 has 2 divisors, whose sum is σ = 463255722. Its totient is φ = 463255720.

The previous prime is 463255717. The next prime is 463255733. The reversal of 463255721 is 127552364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268960000 + 194295721 = 16400^2 + 13939^2 .

It is a cyclic number.

It is not a de Polignac number, because 463255721 - 2² = 463255717 is a prime.

It is not a weakly prime, because it can be changed into another prime (463252721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231627860 + 231627861.

It is an arithmetic number, because the mean of its divisors is an integer number (231627861).

Almost surely, 2^463255721 is an apocalyptic number.

It is an amenable number.

463255721 is a deficient number, since it is larger than the sum of its proper divisors (1).

463255721 is an equidigital number, since it uses as much as digits as its factorization.

463255721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 463255721 is about 21523.3761524534. The cubic root of 463255721 is about 773.7611680683.

The spelling of 463255721 in words is "four hundred sixty-three million, two hundred fifty-five thousand, seven hundred twenty-one".