463641521 has 12 divisors (see below), whose sum is σ = 553920192. Its totient is φ = 380125416.

The previous prime is 463641499. The next prime is 463641539. The reversal of 463641521 is 125146364.

It is not a de Polignac number, because 463641521 - 2¹⁰ = 463640497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (463641551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58901 + ... + 66306.

It is an arithmetic number, because the mean of its divisors is an integer number (46160016).

Almost surely, 2^463641521 is an apocalyptic number.

It is an amenable number.

463641521 is a deficient number, since it is larger than the sum of its proper divisors (90278671).

463641521 is a wasteful number, since it uses less digits than its factorization.

463641521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125260 (or 125237 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 463641521 is about 21532.3366358600. The cubic root of 463641521 is about 773.9759049224.

Adding to 463641521 its reverse (125146364), we get a palindrome (588787885).

The spelling of 463641521 in words is "four hundred sixty-three million, six hundred forty-one thousand, five hundred twenty-one".