3678655 has 4 divisors (see below), whose sum is σ = 4414392. Its totient is φ = 2942920.

The previous prime is 3678617. The next prime is 3678659. The reversal of 3678655 is 5568763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5568763 = 53 ⋅105071.

It is not a de Polignac number, because 3678655 - 2⁷ = 3678527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678659) 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, 367861 + ... + 367870.

It is an arithmetic number, because the mean of its divisors is an integer number (1103598).

Almost surely, 2^3678655 is an apocalyptic number.

3678655 is a deficient number, since it is larger than the sum of its proper divisors (735737).

3678655 is an equidigital number, since it uses as much as digits as its factorization.

3678655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735736.

The product of its digits is 151200, while the sum is 40.

The square root of 3678655 is about 1917.9820124287. The cubic root of 3678655 is about 154.3700411461.

The spelling of 3678655 in words is "three million, six hundred seventy-eight thousand, six hundred fifty-five".