3906630 has 160 divisors (see below), whose sum is σ = 13172544. Its totient is φ = 808704.

The previous prime is 3906613. The next prime is 3906641. The reversal of 3906630 is 366093.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3906594 and 3906603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 73684 + ... + 73736.

Almost surely, 2^3906630 is an apocalyptic number.

3906630 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 3906630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586272).

3906630 is an abundant number, since it is smaller than the sum of its proper divisors (9265914).

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

3906630 is a wasteful number, since it uses less digits than its factorization.

3906630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 3906630 is about 1976.5196685083. The cubic root of 3906630 is about 157.4952379513.

The spelling of 3906630 in words is "three million, nine hundred six thousand, six hundred thirty".