3888938 has 4 divisors (see below), whose sum is σ = 5833410. Its totient is φ = 1944468.

The previous prime is 3888931. The next prime is 3888967. The reversal of 3888938 is 8398883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2393209 + 1495729 = 1547^2 + 1223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3888892 and 3888901.

It is not an unprimeable number, because it can be changed into a prime (3888931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972233 + ... + 972236.

Almost surely, 2^3888938 is an apocalyptic number.

3888938 is a deficient number, since it is larger than the sum of its proper divisors (1944472).

3888938 is a wasteful number, since it uses less digits than its factorization.

3888938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944471.

The product of its digits is 331776, while the sum is 47.

The square root of 3888938 is about 1972.0390462666. The cubic root of 3888938 is about 157.2571279826.

The spelling of 3888938 in words is "three million, eight hundred eighty-eight thousand, nine hundred thirty-eight".