461407949 has 2 divisors, whose sum is σ = 461407950. Its totient is φ = 461407948.

The previous prime is 461407939. The next prime is 461407987. The reversal of 461407949 is 949704164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461175625 + 232324 = 21475^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 461407949 - 2¹² = 461403853 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 (461407909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230703974 + 230703975.

It is an arithmetic number, because the mean of its divisors is an integer number (230703975).

Almost surely, 2^461407949 is an apocalyptic number.

It is an amenable number.

461407949 is a deficient number, since it is larger than the sum of its proper divisors (1).

461407949 is an equidigital number, since it uses as much as digits as its factorization.

461407949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 461407949 is about 21480.4084923914. The cubic root of 461407949 is about 772.7310391424.

The spelling of 461407949 in words is "four hundred sixty-one million, four hundred seven thousand, nine hundred forty-nine".