461433389 has 2 divisors, whose sum is σ = 461433390. Its totient is φ = 461433388.

The previous prime is 461433377. The next prime is 461433457. The reversal of 461433389 is 983334164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 426422500 + 35010889 = 20650^2 + 5917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461433389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461433359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230716694 + 230716695.

It is an arithmetic number, because the mean of its divisors is an integer number (230716695).

Almost surely, 2^461433389 is an apocalyptic number.

It is an amenable number.

461433389 is a deficient number, since it is larger than the sum of its proper divisors (1).

461433389 is an equidigital number, since it uses as much as digits as its factorization.

461433389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 461433389 is about 21481.0006517387. Note that the first 3 decimals coincide. The cubic root of 461433389 is about 772.7452405423.

The spelling of 461433389 in words is "four hundred sixty-one million, four hundred thirty-three thousand, three hundred eighty-nine".