46690409 has 2 divisors, whose sum is σ = 46690410. Its totient is φ = 46690408.

The previous prime is 46690393. The next prime is 46690439. The reversal of 46690409 is 90409664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46280809 + 409600 = 6803^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 46690409 - 2⁴ = 46690393 is a prime.

It is not a weakly prime, because it can be changed into another prime (46690439) 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, 23345204 + 23345205.

It is an arithmetic number, because the mean of its divisors is an integer number (23345205).

Almost surely, 2^46690409 is an apocalyptic number.

It is an amenable number.

46690409 is a deficient number, since it is larger than the sum of its proper divisors (1).

46690409 is an equidigital number, since it uses as much as digits as its factorization.

46690409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 46690409 is about 6833.0380505307. The cubic root of 46690409 is about 360.0884787668.

The spelling of 46690409 in words is "forty-six million, six hundred ninety thousand, four hundred nine".