3666797 has 2 divisors, whose sum is σ = 3666798. Its totient is φ = 3666796.

The previous prime is 3666787. The next prime is 3666809. The reversal of 3666797 is 7976663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3407716 + 259081 = 1846^2 + 509^2 .

It is an emirp because it is prime and its reverse (7976663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3666797 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 (3666727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1833398 + 1833399.

It is an arithmetic number, because the mean of its divisors is an integer number (1833399).

Almost surely, 2^3666797 is an apocalyptic number.

It is an amenable number.

3666797 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666797 is an equidigital number, since it uses as much as digits as its factorization.

3666797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 44.

The square root of 3666797 is about 1914.8882473920. Note that the first 3 decimals coincide. The cubic root of 3666797 is about 154.2039940131.

The spelling of 3666797 in words is "three million, six hundred sixty-six thousand, seven hundred ninety-seven".