3878018 has 4 divisors (see below), whose sum is σ = 5817030. Its totient is φ = 1939008.

The previous prime is 3878003. The next prime is 3878051. The reversal of 3878018 is 8108783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8108783 = 59 ⋅137437.

It can be written as a sum of positive squares in only one way, i.e., 3853369 + 24649 = 1963^2 + 157^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 969503 + ... + 969506.

Almost surely, 2^3878018 is an apocalyptic number.

3878018 is a deficient number, since it is larger than the sum of its proper divisors (1939012).

3878018 is a wasteful number, since it uses less digits than its factorization.

3878018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939011.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 3878018 is about 1969.2683920685. The cubic root of 3878018 is about 157.1097991854.

The spelling of 3878018 in words is "three million, eight hundred seventy-eight thousand, eighteen".