406616459 has 2 divisors, whose sum is σ = 406616460. Its totient is φ = 406616458.

The previous prime is 406616401. The next prime is 406616479. The reversal of 406616459 is 954616604.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406616459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406616479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203308229 + 203308230.

It is an arithmetic number, because the mean of its divisors is an integer number (203308230).

Almost surely, 2^406616459 is an apocalyptic number.

406616459 is a deficient number, since it is larger than the sum of its proper divisors (1).

406616459 is an equidigital number, since it uses as much as digits as its factorization.

406616459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 406616459 is about 20164.7330505514. The cubic root of 406616459 is about 740.8466441946.

The spelling of 406616459 in words is "four hundred six million, six hundred sixteen thousand, four hundred fifty-nine".