5909021 has 2 divisors, whose sum is σ = 5909022. Its totient is φ = 5909020.

The previous prime is 5908993. The next prime is 5909039. The reversal of 5909021 is 1209095.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5812921 + 96100 = 2411^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 5909021 - 2⁶ = 5908957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5909041) 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 as a sum of consecutive naturals, namely, 2954510 + 2954511.

It is an arithmetic number, because the mean of its divisors is an integer number (2954511).

Almost surely, 2^5909021 is an apocalyptic number.

It is an amenable number.

5909021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5909021 is an equidigital number, since it uses as much as digits as its factorization.

5909021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 5909021 is about 2430.8477944948. The cubic root of 5909021 is about 180.7889341943.

The spelling of 5909021 in words is "five million, nine hundred nine thousand, twenty-one".