46571809 has 2 divisors, whose sum is σ = 46571810. Its totient is φ = 46571808.

The previous prime is 46571797. The next prime is 46571821. The reversal of 46571809 is 90817564.

It is a balanced prime because it is at equal distance from previous prime (46571797) and next prime (46571821).

It can be written as a sum of positive squares in only one way, i.e., 41152225 + 5419584 = 6415^2 + 2328^2 .

It is a cyclic number.

It is not a de Polignac number, because 46571809 - 2¹³ = 46563617 is a prime.

It is not a weakly prime, because it can be changed into another prime (46571879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23285904 + 23285905.

It is an arithmetic number, because the mean of its divisors is an integer number (23285905).

Almost surely, 2^46571809 is an apocalyptic number.

It is an amenable number.

46571809 is a deficient number, since it is larger than the sum of its proper divisors (1).

46571809 is an equidigital number, since it uses as much as digits as its factorization.

46571809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 46571809 is about 6824.3541086318. The cubic root of 46571809 is about 359.7833289818.

The spelling of 46571809 in words is "forty-six million, five hundred seventy-one thousand, eight hundred nine".