881398 has 16 divisors (see below), whose sum is σ = 1524384. Its totient is φ = 374400.

The previous prime is 881393. The next prime is 881407. The reversal of 881398 is 893188.

881398 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881393) by changing a digit.

881398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1998 + ... + 2398.

It is an arithmetic number, because the mean of its divisors is an integer number (95274).

2⁸⁸¹³⁹⁸ is an apocalyptic number.

881398 is a deficient number, since it is larger than the sum of its proper divisors (642986).

881398 is a wasteful number, since it uses less digits than its factorization.

881398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its digits is 13824, while the sum is 37.

The square root of 881398 is about 938.8279927654. The cubic root of 881398 is about 95.8791157850.

It can be divided in two parts, 8813 and 98, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 881398 in words is "eight hundred eighty-one thousand, three hundred ninety-eight".