3649693 has 2 divisors, whose sum is σ = 3649694. Its totient is φ = 3649692.

The previous prime is 3649687. The next prime is 3649699. The reversal of 3649693 is 3969463.

It is a balanced prime because it is at equal distance from previous prime (3649687) and next prime (3649699).

It can be written as a sum of positive squares in only one way, i.e., 3305124 + 344569 = 1818^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649693 - 2⁹ = 3649181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649699) 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, 1824846 + 1824847.

It is an arithmetic number, because the mean of its divisors is an integer number (1824847).

Almost surely, 2^3649693 is an apocalyptic number.

It is an amenable number.

3649693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649693 is an equidigital number, since it uses as much as digits as its factorization.

3649693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 40.

The square root of 3649693 is about 1910.4169701926. The cubic root of 3649693 is about 153.9638555754.

It can be divided in two parts, 36 and 49693, that added together give a square (49729 = 223²).

The spelling of 3649693 in words is "three million, six hundred forty-nine thousand, six hundred ninety-three".