7890097 has 2 divisors, whose sum is σ = 7890098. Its totient is φ = 7890096.

The previous prime is 7890083. The next prime is 7890119. The reversal of 7890097 is 7900987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7834401 + 55696 = 2799^2 + 236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7890097 is a prime.

It is not a weakly prime, because it can be changed into another prime (7890067) 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, 3945048 + 3945049.

It is an arithmetic number, because the mean of its divisors is an integer number (3945049).

Almost surely, 2^7890097 is an apocalyptic number.

It is an amenable number.

7890097 is a deficient number, since it is larger than the sum of its proper divisors (1).

7890097 is an equidigital number, since it uses as much as digits as its factorization.

7890097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 7890097 is about 2808.9316474418. The cubic root of 7890097 is about 199.0799153790.

The spelling of 7890097 in words is "seven million, eight hundred ninety thousand, ninety-seven".