3897835 has 16 divisors (see below), whose sum is σ = 4848480. Its totient is φ = 3006720.

The previous prime is 3897827. The next prime is 3897841. The reversal of 3897835 is 5387983.

It is a happy number.

It is not a de Polignac number, because 3897835 - 2³ = 3897827 is a prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 3897791 and 3897800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21445 + ... + 21625.

It is an arithmetic number, because the mean of its divisors is an integer number (303030).

Almost surely, 2^3897835 is an apocalyptic number.

3897835 is a deficient number, since it is larger than the sum of its proper divisors (950645).

3897835 is a wasteful number, since it uses less digits than its factorization.

3897835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318.

The product of its digits is 181440, while the sum is 43.

The square root of 3897835 is about 1974.2935445369. The cubic root of 3897835 is about 157.3769594181.

The spelling of 3897835 in words is "three million, eight hundred ninety-seven thousand, eight hundred thirty-five".