879617 has 2 divisors, whose sum is σ = 879618. Its totient is φ = 879616.

The previous prime is 879607. The next prime is 879623. The reversal of 879617 is 716978.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 712336 + 167281 = 844^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 879617 - 2⁶ = 879553 is a prime.

It is not a weakly prime, because it can be changed into another prime (879607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439808 + 439809.

It is an arithmetic number, because the mean of its divisors is an integer number (439809).

It is a Proth number, since it is equal to 859 ⋅ 2¹⁰ + 1 and 859 < 2¹⁰.

2⁸⁷⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

879617 is a deficient number, since it is larger than the sum of its proper divisors (1).

879617 is an equidigital number, since it uses as much as digits as its factorization.

879617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 38.

The square root of 879617 is about 937.8789900622. The cubic root of 879617 is about 95.8144927466.

The spelling of 879617 in words is "eight hundred seventy-nine thousand, six hundred seventeen".