876749 has 2 divisors, whose sum is σ = 876750. Its totient is φ = 876748.

The previous prime is 876731. The next prime is 876751. The reversal of 876749 is 947678.

876749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 265225 = 782^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-876749 is a prime.

Together with 876751, it forms a pair of twin primes.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (876719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438374 + 438375.

It is an arithmetic number, because the mean of its divisors is an integer number (438375).

2⁸⁷⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

876749 is a deficient number, since it is larger than the sum of its proper divisors (1).

876749 is an equidigital number, since it uses as much as digits as its factorization.

876749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 876749 is about 936.3487598112. The cubic root of 876749 is about 95.7102446607.

The spelling of 876749 in words is "eight hundred seventy-six thousand, seven hundred forty-nine".