462523409 has 2 divisors, whose sum is σ = 462523410. Its totient is φ = 462523408.

The previous prime is 462523343. The next prime is 462523423. The reversal of 462523409 is 904325264.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462379009 + 144400 = 21503^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 462523409 - 2⁸ = 462523153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (462523429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231261704 + 231261705.

It is an arithmetic number, because the mean of its divisors is an integer number (231261705).

Almost surely, 2^462523409 is an apocalyptic number.

It is an amenable number.

462523409 is a deficient number, since it is larger than the sum of its proper divisors (1).

462523409 is an equidigital number, since it uses as much as digits as its factorization.

462523409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 462523409 is about 21506.3574089152. The cubic root of 462523409 is about 773.3532339599.

The spelling of 462523409 in words is "four hundred sixty-two million, five hundred twenty-three thousand, four hundred nine".