3682649 has 4 divisors (see below), whose sum is σ = 3768336. Its totient is φ = 3596964.

The previous prime is 3682643. The next prime is 3682667. The reversal of 3682649 is 9462863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9462863 = 17 ⋅556639.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3682649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3682643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42779 + ... + 42864.

It is an arithmetic number, because the mean of its divisors is an integer number (942084).

Almost surely, 2^3682649 is an apocalyptic number.

It is an amenable number.

3682649 is a deficient number, since it is larger than the sum of its proper divisors (85687).

3682649 is an equidigital number, since it uses as much as digits as its factorization.

3682649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85686.

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

The square root of 3682649 is about 1919.0229284717. The cubic root of 3682649 is about 154.4258886359.

The spelling of 3682649 in words is "three million, six hundred eighty-two thousand, six hundred forty-nine".