3902836 has 12 divisors (see below), whose sum is σ = 7805728. Its totient is φ = 1672632.

The previous prime is 3902827. The next prime is 3902839. The reversal of 3902836 is 6382093.

3902836 = 236² + 237² + ... + 291².

It is a happy number.

3902836 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3902798 and 3902807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3902839) 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, 69666 + ... + 69721.

Almost surely, 2^3902836 is an apocalyptic number.

It is an amenable number.

3902836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3902836 is a wasteful number, since it uses less digits than its factorization.

3902836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139398 (or 139396 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 3902836 is about 1975.5596675373. The cubic root of 3902836 is about 157.4442365789. Note that the first 3 decimals are identical.

The spelling of 3902836 in words is "three million, nine hundred two thousand, eight hundred thirty-six".