3649741 has 2 divisors, whose sum is σ = 3649742. Its totient is φ = 3649740.

The previous prime is 3649699. The next prime is 3649753. The reversal of 3649741 is 1479463.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3222025 + 427716 = 1795^2 + 654^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649741 - 2⁹ = 3649229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3649697 and 3649706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649771) 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, 1824870 + 1824871.

It is an arithmetic number, because the mean of its divisors is an integer number (1824871).

Almost surely, 2^3649741 is an apocalyptic number.

It is an amenable number.

3649741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649741 is an equidigital number, since it uses as much as digits as its factorization.

3649741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 3649741 is about 1910.4295328538. The cubic root of 3649741 is about 153.9645305393.

The spelling of 3649741 in words is "three million, six hundred forty-nine thousand, seven hundred forty-one".