3665731 has 2 divisors, whose sum is σ = 3665732. Its totient is φ = 3665730.

The previous prime is 3665677. The next prime is 3665747. The reversal of 3665731 is 1375663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3665731 - 2¹³ = 3657539 is a prime.

It is a super-2 number, since 2×3665731² = 26875167528722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3665693 and 3665702.

It is not a weakly prime, because it can be changed into another prime (3665791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832865 + 1832866.

It is an arithmetic number, because the mean of its divisors is an integer number (1832866).

Almost surely, 2^3665731 is an apocalyptic number.

3665731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665731 is an equidigital number, since it uses as much as digits as its factorization.

3665731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 31.

The square root of 3665731 is about 1914.6098819342. The cubic root of 3665731 is about 154.1890493271.

The spelling of 3665731 in words is "three million, six hundred sixty-five thousand, seven hundred thirty-one".