3630649 has 8 divisors (see below), whose sum is σ = 3980160. Its totient is φ = 3284400.

The previous prime is 3630643. The next prime is 3630667. The reversal of 3630649 is 9460363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3630649 - 2⁷ = 3630521 is a prime.

It is a super-2 number, since 2×3630649² = 26363224322402, which contains 22 as substring.

It is a Duffinian number.

3630649 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3630649.

It is not an unprimeable number, because it can be changed into a prime (3630643) 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 in 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 3319.

It is an arithmetic number, because the mean of its divisors is an integer number (497520).

Almost surely, 2^3630649 is an apocalyptic number.

It is an amenable number.

3630649 is a deficient number, since it is larger than the sum of its proper divisors (349511).

3630649 is a wasteful number, since it uses less digits than its factorization.

3630649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 3630649 is about 1905.4261990431. The cubic root of 3630649 is about 153.6955953544.

The spelling of 3630649 in words is "three million, six hundred thirty thousand, six hundred forty-nine".