3665279 has 2 divisors, whose sum is σ = 3665280. Its totient is φ = 3665278.

The previous prime is 3665267. The next prime is 3665293. The reversal of 3665279 is 9725663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3665279 - 2⁸ = 3665023 is a prime.

It is a Sophie Germain prime.

It is a pancake number, because a pancake can be divided into 3665279 parts by 2707 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3665239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832639 + 1832640.

It is an arithmetic number, because the mean of its divisors is an integer number (1832640).

Almost surely, 2^3665279 is an apocalyptic number.

3665279 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665279 is an equidigital number, since it uses as much as digits as its factorization.

3665279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 3665279 is about 1914.4918385828. The cubic root of 3665279 is about 154.1827116812.

The spelling of 3665279 in words is "three million, six hundred sixty-five thousand, two hundred seventy-nine".