3705780 has 48 divisors (see below), whose sum is σ = 11176704. Its totient is φ = 912000.

The previous prime is 3705773. The next prime is 3705799. The reversal of 3705780 is 875073.

3705780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1596 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (232848).

Almost surely, 2^3705780 is an apocalyptic number.

3705780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3705780 is an abundant number, since it is smaller than the sum of its proper divisors (7470924).

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

3705780 is a wasteful number, since it uses less digits than its factorization.

3705780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776 (or 4774 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 3705780 is about 1925.0402593193. The cubic root of 3705780 is about 154.7485343272.

The spelling of 3705780 in words is "three million, seven hundred five thousand, seven hundred eighty".