6109399 has 2 divisors, whose sum is σ = 6109400. Its totient is φ = 6109398.

The previous prime is 6109357. The next prime is 6109417. The reversal of 6109399 is 9939016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6109399 - 2⁹ = 6108887 is a prime.

It is a super-2 number, since 2×6109399² = 74649512282402, which contains 22 as substring.

6109399 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6109339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054699 + 3054700.

It is an arithmetic number, because the mean of its divisors is an integer number (3054700).

Almost surely, 2^6109399 is an apocalyptic number.

6109399 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109399 is an equidigital number, since it uses as much as digits as its factorization.

6109399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 6109399 is about 2471.7198465846. The cubic root of 6109399 is about 182.8098096714.

The spelling of 6109399 in words is "six million, one hundred nine thousand, three hundred ninety-nine".