3856994 has 12 divisors (see below), whose sum is σ = 6146754. Its totient is φ = 1814784.

The previous prime is 3856987. The next prime is 3856997. The reversal of 3856994 is 4996583.

It can be written as a sum of positive squares in 3 ways, for example, as 3286969 + 570025 = 1813^2 + 755^2 .

It is a d-powerful number, because it can be written as 3¹³ + 8 + 5⁹ + 6⁶ + 9 + 9³ + 4⁹ .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 2759 + ... + 3914.

Almost surely, 2^3856994 is an apocalyptic number.

3856994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3856994 is a deficient number, since it is larger than the sum of its proper divisors (2289760).

3856994 is a wasteful number, since it uses less digits than its factorization.

3856994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709 (or 6692 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 3856994 is about 1963.9231145847. The cubic root of 3856994 is about 156.8253700880.

The spelling of 3856994 in words is "three million, eight hundred fifty-six thousand, nine hundred ninety-four".