6109997 has 2 divisors, whose sum is σ = 6109998. Its totient is φ = 6109996.

The previous prime is 6109993. The next prime is 6110003. The reversal of 6109997 is 7999016.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4519876 + 1590121 = 2126^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 6109997 - 2² = 6109993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6109991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3054998 + 3054999.

It is an arithmetic number, because the mean of its divisors is an integer number (3054999).

Almost surely, 2^6109997 is an apocalyptic number.

It is an amenable number.

6109997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6109997 is an equidigital number, since it uses as much as digits as its factorization.

6109997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 6109997 is about 2471.8408120265. The cubic root of 6109997 is about 182.8157740714.

The spelling of 6109997 in words is "six million, one hundred nine thousand, nine hundred ninety-seven".