462509389 has 2 divisors, whose sum is σ = 462509390. Its totient is φ = 462509388.

The previous prime is 462509387. The next prime is 462509431. The reversal of 462509389 is 983905264.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319515625 + 142993764 = 17875^2 + 11958^2 .

It is a cyclic number.

It is not a de Polignac number, because 462509389 - 2¹ = 462509387 is a prime.

Together with 462509387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (462509387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231254694 + 231254695.

It is an arithmetic number, because the mean of its divisors is an integer number (231254695).

Almost surely, 2^462509389 is an apocalyptic number.

It is an amenable number.

462509389 is a deficient number, since it is larger than the sum of its proper divisors (1).

462509389 is an equidigital number, since it uses as much as digits as its factorization.

462509389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 462509389 is about 21506.0314563148. The cubic root of 462509389 is about 773.3454199252.

The spelling of 462509389 in words is "four hundred sixty-two million, five hundred nine thousand, three hundred eighty-nine".