6199409 has 2 divisors, whose sum is σ = 6199410. Its totient is φ = 6199408.

The previous prime is 6199399. The next prime is 6199429. The reversal of 6199409 is 9049916.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5987809 + 211600 = 2447^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 6199409 - 2⁸ = 6199153 is a prime.

It is not a weakly prime, because it can be changed into another prime (6199429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3099704 + 3099705.

It is an arithmetic number, because the mean of its divisors is an integer number (3099705).

Almost surely, 2^6199409 is an apocalyptic number.

It is an amenable number.

6199409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6199409 is an equidigital number, since it uses as much as digits as its factorization.

6199409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 6199409 is about 2489.8612411136. The cubic root of 6199409 is about 183.7032176089.

The spelling of 6199409 in words is "six million, one hundred ninety-nine thousand, four hundred nine".