3649682 has 4 divisors (see below), whose sum is σ = 5474526. Its totient is φ = 1824840.

The previous prime is 3649669. The next prime is 3649687. The reversal of 3649682 is 2869463.

3649682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2869463 = 29 ⋅98947.

It can be written as a sum of positive squares in only one way, i.e., 2283121 + 1366561 = 1511^2 + 1169^2 .

It is a super-2 number, since 2×3649682² = 26640357402248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3649687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912419 + ... + 912422.

Almost surely, 2^3649682 is an apocalyptic number.

3649682 is a deficient number, since it is larger than the sum of its proper divisors (1824844).

3649682 is a wasteful number, since it uses less digits than its factorization.

3649682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824843.

The product of its digits is 62208, while the sum is 38.

The square root of 3649682 is about 1910.4140912378. The cubic root of 3649682 is about 153.9637008954.

The spelling of 3649682 in words is "three million, six hundred forty-nine thousand, six hundred eighty-two".