881626 has 16 divisors (see below), whose sum is σ = 1378944. Its totient is φ = 422464.

The previous prime is 881611. The next prime is 881641. The reversal of 881626 is 626188.

It is an interprime number because it is at equal distance from previous prime (881611) and next prime (881641).

It is an unprimeable number.

881626 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, 7746 + ... + 7858.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2⁸⁸¹⁶²⁶ is an apocalyptic number.

881626 is a deficient number, since it is larger than the sum of its proper divisors (497318).

881626 is a wasteful number, since it uses less digits than its factorization.

881626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245.

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

The square root of 881626 is about 938.9494129079. The cubic root of 881626 is about 95.8873824076.

The spelling of 881626 in words is "eight hundred eighty-one thousand, six hundred twenty-six".