877397 has 2 divisors, whose sum is σ = 877398. Its totient is φ = 877396.

The previous prime is 877379. The next prime is 877399. The reversal of 877397 is 793778.

It is a happy number.

Together with previous prime (877379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 872356 + 5041 = 934^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 877397 - 2⁶ = 877333 is a prime.

Together with 877399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (877399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 438698 + 438699.

It is an arithmetic number, because the mean of its divisors is an integer number (438699).

2⁸⁷⁷³⁹⁷ is an apocalyptic number.

It is an amenable number.

877397 is a deficient number, since it is larger than the sum of its proper divisors (1).

877397 is an equidigital number, since it uses as much as digits as its factorization.

877397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 41.

The square root of 877397 is about 936.6947208136. The cubic root of 877397 is about 95.7338184791.

The spelling of 877397 in words is "eight hundred seventy-seven thousand, three hundred ninety-seven".