5918009 has 2 divisors, whose sum is σ = 5918010. Its totient is φ = 5918008.

The previous prime is 5917963. The next prime is 5918021. The reversal of 5918009 is 9008195.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5508409 + 409600 = 2347^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 5918009 - 2¹² = 5913913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5918509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2959004 + 2959005.

It is an arithmetic number, because the mean of its divisors is an integer number (2959005).

Almost surely, 2^5918009 is an apocalyptic number.

It is an amenable number.

5918009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5918009 is an equidigital number, since it uses as much as digits as its factorization.

5918009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 5918009 is about 2432.6958297329. The cubic root of 5918009 is about 180.8805516135.

The spelling of 5918009 in words is "five million, nine hundred eighteen thousand, nine".