3685741 has 2 divisors, whose sum is σ = 3685742. Its totient is φ = 3685740.

The previous prime is 3685739. The next prime is 3685751. The reversal of 3685741 is 1475863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3258025 + 427716 = 1805^2 + 654^2 .

It is a cyclic number.

It is not a de Polignac number, because 3685741 - 2¹ = 3685739 is a prime.

Together with 3685739, it forms a pair of twin primes.

3685741 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3685697 and 3685706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3685751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1842870 + 1842871.

It is an arithmetic number, because the mean of its divisors is an integer number (1842871).

Almost surely, 2^3685741 is an apocalyptic number.

It is an amenable number.

3685741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3685741 is an equidigital number, since it uses as much as digits as its factorization.

3685741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 3685741 is about 1919.8283777463. The cubic root of 3685741 is about 154.4690958740.

The spelling of 3685741 in words is "three million, six hundred eighty-five thousand, seven hundred forty-one".