3649948 has 6 divisors (see below), whose sum is σ = 6387416. Its totient is φ = 1824972.

The previous prime is 3649931. The next prime is 3649949. The reversal of 3649948 is 8499463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649949) 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, 456240 + ... + 456247.

Almost surely, 2^3649948 is an apocalyptic number.

It is an amenable number.

3649948 is a deficient number, since it is larger than the sum of its proper divisors (2737468).

3649948 is a wasteful number, since it uses less digits than its factorization.

3649948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912491 (or 912489 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 3649948 is about 1910.4837083838. The cubic root of 3649948 is about 153.9674412532.

The spelling of 3649948 in words is "three million, six hundred forty-nine thousand, nine hundred forty-eight".