4191097 has 2 divisors, whose sum is σ = 4191098. Its totient is φ = 4191096.

The previous prime is 4191091. The next prime is 4191119. The reversal of 4191097 is 7901914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3059001 + 1132096 = 1749^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 4191097 - 2⁷ = 4190969 is a prime.

It is equal to p₂₉₅₇₄₄ and since 4191097 and 295744 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4191091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2095548 + 2095549.

It is an arithmetic number, because the mean of its divisors is an integer number (2095549).

Almost surely, 2^4191097 is an apocalyptic number.

It is an amenable number.

4191097 is a deficient number, since it is larger than the sum of its proper divisors (1).

4191097 is an equidigital number, since it uses as much as digits as its factorization.

4191097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 4191097 is about 2047.2168912941. The cubic root of 4191097 is about 161.2287811352.

The spelling of 4191097 in words is "four million, one hundred ninety-one thousand, ninety-seven".