3897834 has 8 divisors (see below), whose sum is σ = 7795680. Its totient is φ = 1299276.

The previous prime is 3897827. The next prime is 3897841. The reversal of 3897834 is 4387983.

It is an interprime number because it is at equal distance from previous prime (3897827) and next prime (3897841).

It is a sphenic number, since it is the product of 3 distinct primes.

3897834 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324814 + ... + 324825.

It is an arithmetic number, because the mean of its divisors is an integer number (974460).

Almost surely, 2^3897834 is an apocalyptic number.

3897834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3897834 is a wasteful number, since it uses less digits than its factorization.

3897834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649644.

The product of its digits is 145152, while the sum is 42.

The square root of 3897834 is about 1974.2932912817. The cubic root of 3897834 is about 157.3769459596.

The spelling of 3897834 in words is "three million, eight hundred ninety-seven thousand, eight hundred thirty-four".