463891 has 2 divisors, whose sum is σ = 463892. Its totient is φ = 463890.

The previous prime is 463889. The next prime is 463907. The reversal of 463891 is 198364.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 463891 - 2¹ = 463889 is a prime.

Together with 463889, it forms a pair of twin primes.

It is an Ulam number.

463891 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (463831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231945 + 231946.

It is an arithmetic number, because the mean of its divisors is an integer number (231946).

2⁴⁶³⁸⁹¹ is an apocalyptic number.

463891 is a deficient number, since it is larger than the sum of its proper divisors (1).

463891 is an equidigital number, since it uses as much as digits as its factorization.

463891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 463891 is about 681.0954411828. The cubic root of 463891 is about 77.4114701890.

The spelling of 463891 in words is "four hundred sixty-three thousand, eight hundred ninety-one".