4878397 has 2 divisors, whose sum is σ = 4878398. Its totient is φ = 4878396.

The previous prime is 4878373. The next prime is 4878431. The reversal of 4878397 is 7938784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3767481 + 1110916 = 1941^2 + 1054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4878397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4878697) 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, 2439198 + 2439199.

It is an arithmetic number, because the mean of its divisors is an integer number (2439199).

Almost surely, 2^4878397 is an apocalyptic number.

It is an amenable number.

4878397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4878397 is an equidigital number, since it uses as much as digits as its factorization.

4878397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 4878397 is about 2208.7093516350. The cubic root of 4878397 is about 169.5999474346.

The spelling of 4878397 in words is "four million, eight hundred seventy-eight thousand, three hundred ninety-seven".