3678345 has 32 divisors (see below), whose sum is σ = 7136640. Its totient is φ = 1782720.

The previous prime is 3678317. The next prime is 3678347. The reversal of 3678345 is 5438763.

It is a happy number.

It is not a de Polignac number, because 3678345 - 2⁷ = 3678217 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (3678347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

Almost surely, 2^3678345 is an apocalyptic number.

It is an amenable number.

3678345 is a deficient number, since it is larger than the sum of its proper divisors (3458295).

3678345 is a wasteful number, since it uses less digits than its factorization.

3678345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502 (or 2496 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3678345 is about 1917.9011966209. The cubic root of 3678345 is about 154.3657047734.

The spelling of 3678345 in words is "three million, six hundred seventy-eight thousand, three hundred forty-five".