5209817 has 2 divisors, whose sum is σ = 5209818. Its totient is φ = 5209816.

The previous prime is 5209783. The next prime is 5209823. The reversal of 5209817 is 7189025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4343056 + 866761 = 2084^2 + 931^2 .

It is a cyclic number.

It is not a de Polignac number, because 5209817 - 2¹² = 5205721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5209117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604908 + 2604909.

It is an arithmetic number, because the mean of its divisors is an integer number (2604909).

Almost surely, 2^5209817 is an apocalyptic number.

It is an amenable number.

5209817 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209817 is an equidigital number, since it uses as much as digits as its factorization.

5209817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5209817 is about 2282.5023548728. The cubic root of 5209817 is about 173.3567764972.

The spelling of 5209817 in words is "five million, two hundred nine thousand, eight hundred seventeen".