3897938 has 16 divisors (see below), whose sum is σ = 6500736. Its totient is φ = 1737840.

The previous prime is 3897937. The next prime is 3897941. The reversal of 3897938 is 8397983.

It is a junction number, because it is equal to n+sod(n) for n = 3897892 and 3897901.

It is not an unprimeable number, because it can be changed into a prime (3897937) 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 in 7 ways as a sum of consecutive naturals, for example, 506 + ... + 2837.

It is an arithmetic number, because the mean of its divisors is an integer number (406296).

Almost surely, 2^3897938 is an apocalyptic number.

3897938 is a deficient number, since it is larger than the sum of its proper divisors (2602798).

3897938 is a wasteful number, since it uses less digits than its factorization.

3897938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409.

The product of its digits is 326592, while the sum is 47.

The square root of 3897938 is about 1974.3196296446. The cubic root of 3897938 is about 157.3783456307.

The spelling of 3897938 in words is "three million, eight hundred ninety-seven thousand, nine hundred thirty-eight".