3649546 has 4 divisors (see below), whose sum is σ = 5474322. Its totient is φ = 1824772.

The previous prime is 3649531. The next prime is 3649549. The reversal of 3649546 is 6459463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6459463 = 1039 ⋅6217.

It can be written as a sum of positive squares in only one way, i.e., 3568321 + 81225 = 1889^2 + 285^2 .

It is a super-2 number, since 2×3649546² = 26638372012232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3649549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912385 + ... + 912388.

Almost surely, 2^3649546 is an apocalyptic number.

3649546 is a deficient number, since it is larger than the sum of its proper divisors (1824776).

3649546 is a wasteful number, since it uses less digits than its factorization.

3649546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824775.

The product of its digits is 77760, while the sum is 37.

The square root of 3649546 is about 1910.3784965289. The cubic root of 3649546 is about 153.9617884618.

The spelling of 3649546 in words is "three million, six hundred forty-nine thousand, five hundred forty-six".