3649912 has 24 divisors (see below), whose sum is σ = 7961760. Its totient is φ = 1564080.

The previous prime is 3649907. The next prime is 3649913. The reversal of 3649912 is 2199463.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649913) 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 5 ways as a sum of consecutive naturals, for example, 4264 + ... + 5047.

It is an arithmetic number, because the mean of its divisors is an integer number (331740).

Almost surely, 2^3649912 is an apocalyptic number.

It is an amenable number.

3649912 is an abundant number, since it is smaller than the sum of its proper divisors (4311848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3649912 is a wasteful number, since it uses less digits than its factorization.

3649912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9331 (or 9320 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 3649912 is about 1910.4742866629. The cubic root of 3649912 is about 153.9669350500.

The spelling of 3649912 in words is "three million, six hundred forty-nine thousand, nine hundred twelve".