3678723 has 32 divisors (see below), whose sum is σ = 5875200. Its totient is φ = 2268000.

The previous prime is 3678713. The next prime is 3678743. The reversal of 3678723 is 3278763.

It is a Cunningham number, because it is equal to 1918²-1.

It is not a de Polignac number, because 3678723 - 2⁶ = 3678659 is a prime.

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 (3678713) 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, 36373 + ... + 36473.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

Almost surely, 2^3678723 is an apocalyptic number.

3678723 is a deficient number, since it is larger than the sum of its proper divisors (2196477).

3678723 is a wasteful number, since it uses less digits than its factorization.

3678723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 3678723 is about 1917.9997393118. Note that the first 3 decimals coincide. The cubic root of 3678723 is about 154.3709923178.

The spelling of 3678723 in words is "three million, six hundred seventy-eight thousand, seven hundred twenty-three".