3890836 has 12 divisors (see below), whose sum is σ = 6937812. Its totient is φ = 1908608.

The previous prime is 3890833. The next prime is 3890849. The reversal of 3890836 is 6380983.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 2702736 = 1090^2 + 1644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3890795 and 3890804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890833) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8965 + ... + 9388.

It is an arithmetic number, because the mean of its divisors is an integer number (578151).

Almost surely, 2^3890836 is an apocalyptic number.

It is an amenable number.

3890836 is a deficient number, since it is larger than the sum of its proper divisors (3046976).

3890836 is a wasteful number, since it uses less digits than its factorization.

3890836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18410 (or 18408 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3890836 is about 1972.5202153590. The cubic root of 3890836 is about 157.2827069869.

The spelling of 3890836 in words is "three million, eight hundred ninety thousand, eight hundred thirty-six".