3648394 has 8 divisors (see below), whose sum is σ = 5547780. Its totient is φ = 1799136.

The previous prime is 3648391. The next prime is 3648409. The reversal of 3648394 is 4938463.

It can be written as a sum of positive squares in 2 ways, for example, as 3108169 + 540225 = 1763^2 + 735^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648391) 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 3 ways as a sum of consecutive naturals, for example, 12349 + ... + 12640.

Almost surely, 2^3648394 is an apocalyptic number.

3648394 is a deficient number, since it is larger than the sum of its proper divisors (1899386).

3648394 is a wasteful number, since it uses less digits than its factorization.

3648394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25064.

The product of its digits is 62208, while the sum is 37.

The square root of 3648394 is about 1910.0769618002. The cubic root of 3648394 is about 153.9455871182.

The spelling of 3648394 in words is "three million, six hundred forty-eight thousand, three hundred ninety-four".