3870356 has 48 divisors (see below), whose sum is σ = 8418816. Its totient is φ = 1519104.

The previous prime is 3870337. The next prime is 3870401. The reversal of 3870356 is 6530783.

It is a happy number.

3870356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22286 + ... + 22458.

It is an arithmetic number, because the mean of its divisors is an integer number (175392).

Almost surely, 2^3870356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3870356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4209408).

3870356 is an abundant number, since it is smaller than the sum of its proper divisors (4548460).

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

3870356 is a wasteful number, since it uses less digits than its factorization.

3870356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3870356 is about 1967.3220376949. The cubic root of 3870356 is about 157.0062609915.

The spelling of 3870356 in words is "three million, eight hundred seventy thousand, three hundred fifty-six".