3780866 has 8 divisors (see below), whose sum is σ = 5730060. Its totient is φ = 1870848.

The previous prime is 3780863. The next prime is 3780869. The reversal of 3780866 is 6680873.

It is an interprime number because it is at equal distance from previous prime (3780863) and next prime (3780869).

It can be written as a sum of positive squares in 2 ways, for example, as 3330625 + 450241 = 1825^2 + 671^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3780863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9551 + ... + 9938.

Almost surely, 2^3780866 is an apocalyptic number.

3780866 is a deficient number, since it is larger than the sum of its proper divisors (1949194).

3780866 is a wasteful number, since it uses less digits than its factorization.

3780866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19588.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 3780866 is about 1944.4449079365. Note that the first 3 decimals coincide. The cubic root of 3780866 is about 155.7867181786.

The spelling of 3780866 in words is "three million, seven hundred eighty thousand, eight hundred sixty-six".