3806730 has 64 divisors (see below), whose sum is σ = 10609920. Its totient is φ = 969408.

The previous prime is 3806711. The next prime is 3806741. The reversal of 3806730 is 376083.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3806694 and 3806703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5904 + ... + 6516.

It is an arithmetic number, because the mean of its divisors is an integer number (165780).

Almost surely, 2^3806730 is an apocalyptic number.

3806730 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 3806730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5304960).

3806730 is an abundant number, since it is smaller than the sum of its proper divisors (6803190).

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

3806730 is a wasteful number, since it uses less digits than its factorization.

3806730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 646 counting only the distinct ones).

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

The square root of 3806730 is about 1951.0843139137. The cubic root of 3806730 is about 156.1411444473.

The spelling of 3806730 in words is "three million, eight hundred six thousand, seven hundred thirty".