4557997 has 2 divisors, whose sum is σ = 4557998. Its totient is φ = 4557996.

The previous prime is 4557983. The next prime is 4558003. The reversal of 4557997 is 7997554.

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., 4076361 + 481636 = 2019^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 4557997 - 2¹⁵ = 4525229 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 (4557937) 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, 2278998 + 2278999.

It is an arithmetic number, because the mean of its divisors is an integer number (2278999).

Almost surely, 2^4557997 is an apocalyptic number.

It is an amenable number.

4557997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4557997 is an equidigital number, since it uses as much as digits as its factorization.

4557997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 46.

The square root of 4557997 is about 2134.9466035477. The cubic root of 4557997 is about 165.8026032186.

The spelling of 4557997 in words is "four million, five hundred fifty-seven thousand, nine hundred ninety-seven".