876661 has 2 divisors, whose sum is σ = 876662. Its totient is φ = 876660.

The previous prime is 876653. The next prime is 876677. The reversal of 876661 is 166678.

876661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498436 + 378225 = 706^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 876661 - 2³ = 876653 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (876611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438330 + 438331.

It is an arithmetic number, because the mean of its divisors is an integer number (438331).

2⁸⁷⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

876661 is a deficient number, since it is larger than the sum of its proper divisors (1).

876661 is an equidigital number, since it uses as much as digits as its factorization.

876661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 876661 is about 936.3017675942. The cubic root of 876661 is about 95.7070423822.

The spelling of 876661 in words is "eight hundred seventy-six thousand, six hundred sixty-one".