463921 has 2 divisors, whose sum is σ = 463922. Its totient is φ = 463920.

The previous prime is 463919. The next prime is 463949. The reversal of 463921 is 129364.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 1521 = 680^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 463921 - 2¹ = 463919 is a prime.

Together with 463919, it forms a pair of twin primes.

463921 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (463321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231960 + 231961.

It is an arithmetic number, because the mean of its divisors is an integer number (231961).

2⁴⁶³⁹²¹ is an apocalyptic number.

It is an amenable number.

463921 is a deficient number, since it is larger than the sum of its proper divisors (1).

463921 is an equidigital number, since it uses as much as digits as its factorization.

463921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 463921 is about 681.1174641719. The cubic root of 463921 is about 77.4131388957.

The spelling of 463921 in words is "four hundred sixty-three thousand, nine hundred twenty-one".