4457997 has 20 divisors (see below), whose sum is σ = 6806976. Its totient is φ = 2906280.

The previous prime is 4457987. The next prime is 4458001. The reversal of 4457997 is 7997544.

It is not a de Polignac number, because 4457997 - 2⁶ = 4457933 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 4¹¹ + 5³ + 7³ + 9 + 9³ + 7³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3222 + ... + 4392.

Almost surely, 2^4457997 is an apocalyptic number.

4457997 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4457997 is a deficient number, since it is larger than the sum of its proper divisors (2348979).

4457997 is a wasteful number, since it uses less digits than its factorization.

4457997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1221 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 4457997 is about 2111.3969309441. The cubic root of 4457997 is about 164.5810860916.

The spelling of 4457997 in words is "four million, four hundred fifty-seven thousand, nine hundred ninety-seven".