406604489 has 2 divisors, whose sum is σ = 406604490. Its totient is φ = 406604488.

The previous prime is 406604483. The next prime is 406604501. The reversal of 406604489 is 984406604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218448400 + 188156089 = 14780^2 + 13717^2 .

It is a cyclic number.

It is not a de Polignac number, because 406604489 - 2¹² = 406600393 is a prime.

It is a super-2 number, since 2×406604489² = 330654420949902242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406604483) 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, 203302244 + 203302245.

It is an arithmetic number, because the mean of its divisors is an integer number (203302245).

Almost surely, 2^406604489 is an apocalyptic number.

It is an amenable number.

406604489 is a deficient number, since it is larger than the sum of its proper divisors (1).

406604489 is an equidigital number, since it uses as much as digits as its factorization.

406604489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 406604489 is about 20164.4362430493. The cubic root of 406604489 is about 740.8393744271.

The spelling of 406604489 in words is "four hundred six million, six hundred four thousand, four hundred eighty-nine".