462543989 has 4 divisors (see below), whose sum is σ = 462601824. Its totient is φ = 462486156.

The previous prime is 462543971. The next prime is 462544003. The reversal of 462543989 is 989345264.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 462543989 - 2¹⁶ = 462478453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (462545989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14537 + ... + 33710.

It is an arithmetic number, because the mean of its divisors is an integer number (115650456).

Almost surely, 2^462543989 is an apocalyptic number.

It is an amenable number.

462543989 is a deficient number, since it is larger than the sum of its proper divisors (57835).

462543989 is an equidigital number, since it uses as much as digits as its factorization.

462543989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57834.

The product of its digits is 1866240, while the sum is 50.

The square root of 462543989 is about 21506.8358667657. The cubic root of 462543989 is about 773.3647039188.

The spelling of 462543989 in words is "four hundred sixty-two million, five hundred forty-three thousand, nine hundred eighty-nine".