4509997 has 2 divisors, whose sum is σ = 4509998. Its totient is φ = 4509996.

The previous prime is 4509983. The next prime is 4510021. The reversal of 4509997 is 7999054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3189796 + 1320201 = 1786^2 + 1149^2 .

It is a cyclic number.

It is not a de Polignac number, because 4509997 - 2¹¹ = 4507949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4509907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254998 + 2254999.

It is an arithmetic number, because the mean of its divisors is an integer number (2254999).

Almost surely, 2^4509997 is an apocalyptic number.

It is an amenable number.

4509997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4509997 is an equidigital number, since it uses as much as digits as its factorization.

4509997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 4509997 is about 2123.6753518370. The cubic root of 4509997 is about 165.2185289365.

The spelling of 4509997 in words is "four million, five hundred nine thousand, nine hundred ninety-seven".