3897996 has 24 divisors (see below), whose sum is σ = 9157680. Its totient is φ = 1290432.

The previous prime is 3897973. The next prime is 3898001. The reversal of 3897996 is 6997983.

It is a super-4 number, since 4×3897996⁴ (a number of 27 digits) contains 4444 as substring.

It is an unprimeable number.

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, 850 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (381570).

Almost surely, 2^3897996 is an apocalyptic number.

It is an amenable number.

3897996 is an abundant number, since it is smaller than the sum of its proper divisors (5259684).

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

3897996 is a wasteful number, since it uses less digits than its factorization.

3897996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233 (or 2231 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 3897996 is about 1974.3343181944. The cubic root of 3897996 is about 157.3791262057.

It can be divided in two parts, 389 and 7996, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 3897996 in words is "three million, eight hundred ninety-seven thousand, nine hundred ninety-six".