4857997 has 2 divisors, whose sum is σ = 4857998. Its totient is φ = 4857996.

The previous prime is 4857973. The next prime is 4858019. The reversal of 4857997 is 7997584.

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., 2604996 + 2253001 = 1614^2 + 1501^2 .

It is a cyclic number.

It is not a de Polignac number, because 4857997 - 2¹⁹ = 4333709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4857997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4852997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428998 + 2428999.

It is an arithmetic number, because the mean of its divisors is an integer number (2428999).

Almost surely, 2^4857997 is an apocalyptic number.

It is an amenable number.

4857997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4857997 is an equidigital number, since it uses as much as digits as its factorization.

4857997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 49.

The square root of 4857997 is about 2204.0864320620. The cubic root of 4857997 is about 169.3632116903.

The spelling of 4857997 in words is "four million, eight hundred fifty-seven thousand, nine hundred ninety-seven".