881613 has 12 divisors (see below), whose sum is σ = 1329120. Its totient is φ = 562056.

The previous prime is 881611. The next prime is 881641. The reversal of 881613 is 316188.

It is not a de Polignac number, because 881613 - 2¹ = 881611 is a prime.

881613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881611) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1923 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (110760).

2⁸⁸¹⁶¹³ is an apocalyptic number.

It is an amenable number.

881613 is a deficient number, since it is larger than the sum of its proper divisors (447507).

881613 is a wasteful number, since it uses less digits than its factorization.

881613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288 (or 4285 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 881613 is about 938.9424902517. The cubic root of 881613 is about 95.8869111034.

The spelling of 881613 in words is "eight hundred eighty-one thousand, six hundred thirteen".