1881463 has 2 divisors, whose sum is σ = 1881464. Its totient is φ = 1881462.

The previous prime is 1881461. The next prime is 1881479. The reversal of 1881463 is 3641881.

It is a weak prime.

It is an emirp because it is prime and its reverse (3641881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1881463 - 2¹ = 1881461 is a prime.

Together with 1881461, 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 (1881461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 940731 + 940732.

It is an arithmetic number, because the mean of its divisors is an integer number (940732).

2^1881463 is an apocalyptic number.

1881463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1881463 is an equidigital number, since it uses as much as digits as its factorization.

1881463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 1881463 is about 1371.6643175355. The cubic root of 1881463 is about 123.4521223825.

The spelling of 1881463 in words is "one million, eight hundred eighty-one thousand, four hundred sixty-three".