7165997 has 2 divisors, whose sum is σ = 7165998. Its totient is φ = 7165996.

The previous prime is 7165981. The next prime is 7166057. The reversal of 7165997 is 7995617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123561 + 42436 = 2669^2 + 206^2 .

It is a cyclic number.

It is not a de Polignac number, because 7165997 - 2⁴ = 7165981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7165097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582998 + 3582999.

It is an arithmetic number, because the mean of its divisors is an integer number (3582999).

Almost surely, 2^7165997 is an apocalyptic number.

It is an amenable number.

7165997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7165997 is an equidigital number, since it uses as much as digits as its factorization.

7165997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 119070, while the sum is 44.

The square root of 7165997 is about 2676.9379895694. The cubic root of 7165997 is about 192.7934199559.

The spelling of 7165997 in words is "seven million, one hundred sixty-five thousand, nine hundred ninety-seven".