461777089 has 2 divisors, whose sum is σ = 461777090. Its totient is φ = 461777088.

The previous prime is 461777081. The next prime is 461777093. The reversal of 461777089 is 980777164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248850625 + 212926464 = 15775^2 + 14592^2 .

It is a cyclic number.

It is not a de Polignac number, because 461777089 - 2³ = 461777081 is a prime.

It is not a weakly prime, because it can be changed into another prime (461777081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230888544 + 230888545.

It is an arithmetic number, because the mean of its divisors is an integer number (230888545).

Almost surely, 2^461777089 is an apocalyptic number.

It is an amenable number.

461777089 is a deficient number, since it is larger than the sum of its proper divisors (1).

461777089 is an equidigital number, since it uses as much as digits as its factorization.

461777089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 592704, while the sum is 49.

The square root of 461777089 is about 21488.9992554330. Note that the first 3 decimals coincide. The cubic root of 461777089 is about 772.9370534383.

The spelling of 461777089 in words is "four hundred sixty-one million, seven hundred seventy-seven thousand, eighty-nine".