876643 has 2 divisors, whose sum is σ = 876644. Its totient is φ = 876642.

The previous prime is 876619. The next prime is 876647. The reversal of 876643 is 346678.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 876643 - 2⁵ = 876611 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 876599 and 876608.

It is not a weakly prime, because it can be changed into another prime (876647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438321 + 438322.

It is an arithmetic number, because the mean of its divisors is an integer number (438322).

2⁸⁷⁶⁶⁴³ is an apocalyptic number.

876643 is a deficient number, since it is larger than the sum of its proper divisors (1).

876643 is an equidigital number, since it uses as much as digits as its factorization.

876643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 876643 is about 936.2921552592. The cubic root of 876643 is about 95.7063873443.

The spelling of 876643 in words is "eight hundred seventy-six thousand, six hundred forty-three".