461792809 has 2 divisors, whose sum is σ = 461792810. Its totient is φ = 461792808.

The previous prime is 461792801. The next prime is 461792831. The reversal of 461792809 is 908297164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319515625 + 142277184 = 17875^2 + 11928^2 .

It is a cyclic number.

It is not a de Polignac number, because 461792809 - 2³ = 461792801 is a prime.

It is a super-2 number, since 2×461792809² = 426505196888220962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (461792801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230896404 + 230896405.

It is an arithmetic number, because the mean of its divisors is an integer number (230896405).

Almost surely, 2^461792809 is an apocalyptic number.

It is an amenable number.

461792809 is a deficient number, since it is larger than the sum of its proper divisors (1).

461792809 is an equidigital number, since it uses as much as digits as its factorization.

461792809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 461792809 is about 21489.3650208656. The cubic root of 461792809 is about 772.9458242160.

The spelling of 461792809 in words is "four hundred sixty-one million, seven hundred ninety-two thousand, eight hundred nine".