4520997 has 24 divisors (see below), whose sum is σ = 7449624. Its totient is φ = 2617344.

The previous prime is 4520983. The next prime is 4521001. The reversal of 4520997 is 7990254.

It can be written as a sum of positive squares in 4 ways, for example, as 1313316 + 3207681 = 1146^2 + 1791^2 .

It is not a de Polignac number, because 4520997 - 2⁷ = 4520869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520497) 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 in 23 ways as a sum of consecutive naturals, for example, 853 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (310401).

Almost surely, 2^4520997 is an apocalyptic number.

It is an amenable number.

4520997 is a deficient number, since it is larger than the sum of its proper divisors (2928627).

4520997 is a wasteful number, since it uses less digits than its factorization.

4520997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2306 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 4520997 is about 2126.2636242950. The cubic root of 4520997 is about 165.3527439742.

The spelling of 4520997 in words is "four million, five hundred twenty thousand, nine hundred ninety-seven".