3856996 has 36 divisors (see below), whose sum is σ = 8002876. Its totient is φ = 1615680.

The previous prime is 3856987. The next prime is 3856997. The reversal of 3856996 is 6996583.

It can be written as a sum of positive squares in 2 ways, for example, as 193600 + 3663396 = 440^2 + 1914^2 .

It is not an unprimeable number, because it can be changed into a prime (3856997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5986 + ... + 6598.

Almost surely, 2^3856996 is an apocalyptic number.

It is an amenable number.

3856996 is an abundant number, since it is smaller than the sum of its proper divisors (4145880).

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

3856996 is a wasteful number, since it uses less digits than its factorization.

3856996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 639 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 3856996 is about 1963.9236237695. The cubic root of 3856996 is about 156.8253971946.

It can be divided in two parts, 385 and 6996, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 3856996 in words is "three million, eight hundred fifty-six thousand, nine hundred ninety-six".