408364613 has 2 divisors, whose sum is σ = 408364614. Its totient is φ = 408364612.

The previous prime is 408364589. The next prime is 408364673. The reversal of 408364613 is 316463804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378574849 + 29789764 = 19457^2 + 5458^2 .

It is a cyclic number.

It is not a de Polignac number, because 408364613 - 2⁸ = 408364357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408364673) 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, 204182306 + 204182307.

It is an arithmetic number, because the mean of its divisors is an integer number (204182307).

Almost surely, 2^408364613 is an apocalyptic number.

It is an amenable number.

408364613 is a deficient number, since it is larger than the sum of its proper divisors (1).

408364613 is an equidigital number, since it uses as much as digits as its factorization.

408364613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 408364613 is about 20208.0333778426. The cubic root of 408364613 is about 741.9068262582.

The spelling of 408364613 in words is "four hundred eight million, three hundred sixty-four thousand, six hundred thirteen".