3646967 has 4 divisors (see below), whose sum is σ = 3708840. Its totient is φ = 3585096.

The previous prime is 3646963. The next prime is 3646997. The reversal of 3646967 is 7696463.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3646967 - 2² = 3646963 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 6² + 4⁹ + 6⁸ + 9⁴ + 6⁸ + 7⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30848 + ... + 30965.

It is an arithmetic number, because the mean of its divisors is an integer number (927210).

Almost surely, 2^3646967 is an apocalyptic number.

3646967 is a deficient number, since it is larger than the sum of its proper divisors (61873).

3646967 is an equidigital number, since it uses as much as digits as its factorization.

3646967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61872.

The product of its digits is 163296, while the sum is 41.

The square root of 3646967 is about 1909.7033801091. The cubic root of 3646967 is about 153.9255135370.

The spelling of 3646967 in words is "three million, six hundred forty-six thousand, nine hundred sixty-seven".