3870630 has 48 divisors (see below), whose sum is σ = 10417680. Its totient is φ = 995904.

The previous prime is 3870619. The next prime is 3870631. The reversal of 3870630 is 360783.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3870594 and 3870603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870631) 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 23 ways as a sum of consecutive naturals, for example, 1869 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (217035).

Almost surely, 2^3870630 is an apocalyptic number.

3870630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3870630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5208840).

3870630 is an abundant number, since it is smaller than the sum of its proper divisors (6547050).

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

3870630 is a wasteful number, since it uses less digits than its factorization.

3870630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3870630 is about 1967.3916742733. The cubic root of 3870630 is about 157.0099659651.

The spelling of 3870630 in words is "three million, eight hundred seventy thousand, six hundred thirty".