3678938 has 4 divisors (see below), whose sum is σ = 5518410. Its totient is φ = 1839468.

The previous prime is 3678937. The next prime is 3678943. The reversal of 3678938 is 8398763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8398763 = 1063 ⋅7901.

It can be written as a sum of positive squares in only one way, i.e., 3179089 + 499849 = 1783^2 + 707^2 .

It is not an unprimeable number, because it can be changed into a prime (3678931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919733 + ... + 919736.

Almost surely, 2^3678938 is an apocalyptic number.

3678938 is a deficient number, since it is larger than the sum of its proper divisors (1839472).

3678938 is a wasteful number, since it uses less digits than its factorization.

3678938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839471.

The product of its digits is 217728, while the sum is 44.

The square root of 3678938 is about 1918.0557864671. The cubic root of 3678938 is about 154.3739996220.

The spelling of 3678938 in words is "three million, six hundred seventy-eight thousand, nine hundred thirty-eight".