458629921 has 2 divisors, whose sum is σ = 458629922. Its totient is φ = 458629920.

The previous prime is 458629909. The next prime is 458629933. The reversal of 458629921 is 129926854.

It is a balanced prime because it is at equal distance from previous prime (458629909) and next prime (458629933).

It can be written as a sum of positive squares in only one way, i.e., 439489296 + 19140625 = 20964^2 + 4375^2 .

It is a cyclic number.

It is not a de Polignac number, because 458629921 - 2⁷ = 458629793 is a prime.

It is not a weakly prime, because it can be changed into another prime (458629021) 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, 229314960 + 229314961.

It is an arithmetic number, because the mean of its divisors is an integer number (229314961).

Almost surely, 2^458629921 is an apocalyptic number.

It is an amenable number.

458629921 is a deficient number, since it is larger than the sum of its proper divisors (1).

458629921 is an equidigital number, since it uses as much as digits as its factorization.

458629921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 458629921 is about 21415.6466397819. The cubic root of 458629921 is about 771.1771061347.

The spelling of 458629921 in words is "four hundred fifty-eight million, six hundred twenty-nine thousand, nine hundred twenty-one".