3862780 has 12 divisors (see below), whose sum is σ = 8111880. Its totient is φ = 1545104.

The previous prime is 3862769. The next prime is 3862783. The reversal of 3862780 is 872683.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3862783) 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, 96550 + ... + 96589.

It is an arithmetic number, because the mean of its divisors is an integer number (675990).

Almost surely, 2^3862780 is an apocalyptic number.

It is an amenable number.

3862780 is an abundant number, since it is smaller than the sum of its proper divisors (4249100).

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

3862780 is a wasteful number, since it uses less digits than its factorization.

3862780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193148 (or 193146 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3862780 is about 1965.3956344716. The cubic root of 3862780 is about 156.9037504911.

The spelling of 3862780 in words is "three million, eight hundred sixty-two thousand, seven hundred eighty".