4971397 has 2 divisors, whose sum is σ = 4971398. Its totient is φ = 4971396.

The previous prime is 4971341. The next prime is 4971409. The reversal of 4971397 is 7931794.

4971397 is nontrivially palindromic in base 12.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4691556 + 279841 = 2166^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 4971397 - 2⁷ = 4971269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4971797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485698 + 2485699.

It is an arithmetic number, because the mean of its divisors is an integer number (2485699).

Almost surely, 2^4971397 is an apocalyptic number.

It is an amenable number.

4971397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4971397 is an equidigital number, since it uses as much as digits as its factorization.

4971397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 40.

The square root of 4971397 is about 2229.6629790172. The cubic root of 4971397 is about 170.6709012994.

The spelling of 4971397 in words is "four million, nine hundred seventy-one thousand, three hundred ninety-seven".