458646889 has 2 divisors, whose sum is σ = 458646890. Its totient is φ = 458646888.

The previous prime is 458646817. The next prime is 458646913. The reversal of 458646889 is 988646854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420947289 + 37699600 = 20517^2 + 6140^2 .

It is a cyclic number.

It is not a de Polignac number, because 458646889 - 2¹¹ = 458644841 is a prime.

It is not a weakly prime, because it can be changed into another prime (458646389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229323444 + 229323445.

It is an arithmetic number, because the mean of its divisors is an integer number (229323445).

Almost surely, 2^458646889 is an apocalyptic number.

It is an amenable number.

458646889 is a deficient number, since it is larger than the sum of its proper divisors (1).

458646889 is an equidigital number, since it uses as much as digits as its factorization.

458646889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13271040, while the sum is 58.

The square root of 458646889 is about 21416.0427950637. The cubic root of 458646889 is about 771.1866164692.

The spelling of 458646889 in words is "four hundred fifty-eight million, six hundred forty-six thousand, eight hundred eighty-nine".