3780985 has 8 divisors (see below), whose sum is σ = 4886280. Its totient is φ = 2792064.

The previous prime is 3780971. The next prime is 3780989. The reversal of 3780985 is 5890873.

It can be written as a sum of positive squares in 4 ways, for example, as 1849 + 3779136 = 43^2 + 1944^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3780985 - 2⁷ = 3780857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3780989) 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 7 ways as a sum of consecutive naturals, for example, 29020 + ... + 29149.

It is an arithmetic number, because the mean of its divisors is an integer number (610785).

Almost surely, 2^3780985 is an apocalyptic number.

It is an amenable number.

3780985 is a deficient number, since it is larger than the sum of its proper divisors (1105295).

3780985 is a wasteful number, since it uses less digits than its factorization.

3780985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58187.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3780985 is about 1944.4755076884. The cubic root of 3780985 is about 155.7883525859.

The spelling of 3780985 in words is "three million, seven hundred eighty thousand, nine hundred eighty-five".