3788978 has 4 divisors (see below), whose sum is σ = 5683470. Its totient is φ = 1894488.

The previous prime is 3788969. The next prime is 3788989. The reversal of 3788978 is 8798873.

3788978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8798873 = 1061 ⋅8293.

It can be written as a sum of positive squares in only one way, i.e., 2948089 + 840889 = 1717^2 + 917^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 947243 + ... + 947246.

Almost surely, 2^3788978 is an apocalyptic number.

3788978 is a deficient number, since it is larger than the sum of its proper divisors (1894492).

3788978 is a wasteful number, since it uses less digits than its factorization.

3788978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894491.

The product of its digits is 677376, while the sum is 50.

The square root of 3788978 is about 1946.5297326268. The cubic root of 3788978 is about 155.8980541469.

The spelling of 3788978 in words is "three million, seven hundred eighty-eight thousand, nine hundred seventy-eight".