3683657 has 4 divisors (see below), whose sum is σ = 3843840. Its totient is φ = 3523476.

The previous prime is 3683651. The next prime is 3683671. The reversal of 3683657 is 7563863.

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: 7563863 = 193 ⋅39191.

It is a cyclic number.

It is not a de Polignac number, because 3683657 - 2⁸ = 3683401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3683657.

It is not an unprimeable number, because it can be changed into a prime (3683651) 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, 80057 + ... + 80102.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^3683657 is an apocalyptic number.

It is an amenable number.

3683657 is a deficient number, since it is larger than the sum of its proper divisors (160183).

3683657 is a wasteful number, since it uses less digits than its factorization.

3683657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160182.

The product of its digits is 90720, while the sum is 38.

The square root of 3683657 is about 1919.2855441544. The cubic root of 3683657 is about 154.4399769634.

The spelling of 3683657 in words is "three million, six hundred eighty-three thousand, six hundred fifty-seven".