462456721 has 2 divisors, whose sum is σ = 462456722. Its totient is φ = 462456720.

The previous prime is 462456647. The next prime is 462456739. The reversal of 462456721 is 127654264.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414570321 + 47886400 = 20361^2 + 6920^2 .

It is a cyclic number.

It is not a de Polignac number, because 462456721 - 2¹¹ = 462454673 is a prime.

It is not a weakly prime, because it can be changed into another prime (462456221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231228360 + 231228361.

It is an arithmetic number, because the mean of its divisors is an integer number (231228361).

Almost surely, 2^462456721 is an apocalyptic number.

It is an amenable number.

462456721 is a deficient number, since it is larger than the sum of its proper divisors (1).

462456721 is an equidigital number, since it uses as much as digits as its factorization.

462456721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 462456721 is about 21504.8069277545. The cubic root of 462456721 is about 773.3160640507.

The spelling of 462456721 in words is "four hundred sixty-two million, four hundred fifty-six thousand, seven hundred twenty-one".