881939 has 2 divisors, whose sum is σ = 881940. Its totient is φ = 881938.

The previous prime is 881917. The next prime is 881953. The reversal of 881939 is 939188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 881939 - 2¹² = 877843 is a prime.

It is a Chen prime.

It is equal to p₆₉₉₆₈ and since 881939 and 69968 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (881539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440969 + 440970.

It is an arithmetic number, because the mean of its divisors is an integer number (440970).

2⁸⁸¹⁹³⁹ is an apocalyptic number.

881939 is a deficient number, since it is larger than the sum of its proper divisors (1).

881939 is an equidigital number, since it uses as much as digits as its factorization.

881939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 881939 is about 939.1160737630. The cubic root of 881939 is about 95.8987285640.

The spelling of 881939 in words is "eight hundred eighty-one thousand, nine hundred thirty-nine".