881506 has 4 divisors (see below), whose sum is σ = 1322262. Its totient is φ = 440752.

The previous prime is 881479. The next prime is 881509. The reversal of 881506 is 605188.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 826281 + 55225 = 909^2 + 235^2 .

It is not an unprimeable number, because it can be changed into a prime (881509) 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, 220375 + ... + 220378.

2⁸⁸¹⁵⁰⁶ is an apocalyptic number.

881506 is a deficient number, since it is larger than the sum of its proper divisors (440756).

881506 is a wasteful number, since it uses less digits than its factorization.

881506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440755.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 881506 is about 938.8855095271. The cubic root of 881506 is about 95.8830317313.

The spelling of 881506 in words is "eight hundred eighty-one thousand, five hundred six".