3646693 has 2 divisors, whose sum is σ = 3646694. Its totient is φ = 3646692.

The previous prime is 3646681. The next prime is 3646711. The reversal of 3646693 is 3966463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 1387684 = 1503^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 3646693 - 2⁵ = 3646661 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3646603) 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, 1823346 + 1823347.

It is an arithmetic number, because the mean of its divisors is an integer number (1823347).

Almost surely, 2^3646693 is an apocalyptic number.

It is an amenable number.

3646693 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646693 is an equidigital number, since it uses as much as digits as its factorization.

3646693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 37.

The square root of 3646693 is about 1909.6316398719. The cubic root of 3646693 is about 153.9216585851.

The spelling of 3646693 in words is "three million, six hundred forty-six thousand, six hundred ninety-three".