46645409 has 2 divisors, whose sum is σ = 46645410. Its totient is φ = 46645408.

The previous prime is 46645397. The next prime is 46645441. The reversal of 46645409 is 90454664.

It is a happy number.

46645409 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 1795600 = 6697^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 46645409 - 2⁴ = 46645393 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (46647409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23322704 + 23322705.

It is an arithmetic number, because the mean of its divisors is an integer number (23322705).

Almost surely, 2^46645409 is an apocalyptic number.

It is an amenable number.

46645409 is a deficient number, since it is larger than the sum of its proper divisors (1).

46645409 is an equidigital number, since it uses as much as digits as its factorization.

46645409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 46645409 is about 6829.7444315289. The cubic root of 46645409 is about 359.9727577122.

The spelling of 46645409 in words is "forty-six million, six hundred forty-five thousand, four hundred nine".