3706780 has 96 divisors (see below), whose sum is σ = 10160640. Its totient is φ = 1102080.

The previous prime is 3706777. The next prime is 3706817. The reversal of 3706780 is 876073.

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, 44619 + ... + 44701.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

Almost surely, 2^3706780 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 3706780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5080320).

3706780 is an abundant number, since it is smaller than the sum of its proper divisors (6453860).

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

3706780 is a wasteful number, since it uses less digits than its factorization.

3706780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 3706780 is about 1925.2999766270. The cubic root of 3706780 is about 154.7624526401.

The spelling of 3706780 in words is "three million, seven hundred six thousand, seven hundred eighty".