876981 has 8 divisors (see below), whose sum is σ = 1336384. Its totient is φ = 501120.

The previous prime is 876971. The next prime is 877003. The reversal of 876981 is 189678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 876981 - 2⁷ = 876853 is a prime.

It is a super-2 number, since 2×876981² = 1538191348722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

876981 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 876981.

It is not an unprimeable number, because it can be changed into a prime (876971) 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 in 7 ways as a sum of consecutive naturals, for example, 20860 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (167048).

2⁸⁷⁶⁹⁸¹ is an apocalyptic number.

It is an amenable number.

876981 is a deficient number, since it is larger than the sum of its proper divisors (459403).

876981 is a wasteful number, since it uses less digits than its factorization.

876981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41771.

The product of its digits is 24192, while the sum is 39.

The square root of 876981 is about 936.4726370802. The cubic root of 876981 is about 95.7186860042.

The spelling of 876981 in words is "eight hundred seventy-six thousand, nine hundred eighty-one".