879449 has 2 divisors, whose sum is σ = 879450. Its totient is φ = 879448.

The previous prime is 879413. The next prime is 879457. The reversal of 879449 is 944978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 126025 = 868^2 + 355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879449 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (879649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439724 + 439725.

It is an arithmetic number, because the mean of its divisors is an integer number (439725).

2⁸⁷⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

879449 is a deficient number, since it is larger than the sum of its proper divisors (1).

879449 is an equidigital number, since it uses as much as digits as its factorization.

879449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 879449 is about 937.7894219920. The cubic root of 879449 is about 95.8083924174.

The spelling of 879449 in words is "eight hundred seventy-nine thousand, four hundred forty-nine".