46664809 has 2 divisors, whose sum is σ = 46664810. Its totient is φ = 46664808.

The previous prime is 46664797. The next prime is 46664831. The reversal of 46664809 is 90846664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29192409 + 17472400 = 5403^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 46664809 - 2⁵ = 46664777 is a prime.

It is not a weakly prime, because it can be changed into another prime (46664899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23332404 + 23332405.

It is an arithmetic number, because the mean of its divisors is an integer number (23332405).

Almost surely, 2^46664809 is an apocalyptic number.

It is an amenable number.

46664809 is a deficient number, since it is larger than the sum of its proper divisors (1).

46664809 is an equidigital number, since it uses as much as digits as its factorization.

46664809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 46664809 is about 6831.1645420089. The cubic root of 46664809 is about 360.0226554672.

The spelling of 46664809 in words is "forty-six million, six hundred sixty-four thousand, eight hundred nine".