881663 has 2 divisors, whose sum is σ = 881664. Its totient is φ = 881662.

The previous prime is 881641. The next prime is 881669. The reversal of 881663 is 366188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 881663 - 2⁸ = 881407 is a prime.

It is a Chen prime.

It is equal to p₆₉₉₅₃ and since 881663 and 69953 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (881669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440831 + 440832.

It is an arithmetic number, because the mean of its divisors is an integer number (440832).

2⁸⁸¹⁶⁶³ is an apocalyptic number.

881663 is a deficient number, since it is larger than the sum of its proper divisors (1).

881663 is an equidigital number, since it uses as much as digits as its factorization.

881663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 881663 is about 938.9691155730. The cubic root of 881663 is about 95.8887237865. Note that the first 3 decimals are identical.

The spelling of 881663 in words is "eight hundred eighty-one thousand, six hundred sixty-three".