3980780 has 12 divisors (see below), whose sum is σ = 8359680. Its totient is φ = 1592304.

The previous prime is 3980761. The next prime is 3980819. The reversal of 3980780 is 870893.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3980780.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99500 + ... + 99539.

It is an arithmetic number, because the mean of its divisors is an integer number (696640).

Almost surely, 2^3980780 is an apocalyptic number.

It is an amenable number.

3980780 is an abundant number, since it is smaller than the sum of its proper divisors (4378900).

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

3980780 is a wasteful number, since it uses less digits than its factorization.

3980780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199048 (or 199046 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 3980780 is about 1995.1892140847. The cubic root of 3980780 is about 158.4854481494.

The spelling of 3980780 in words is "three million, nine hundred eighty thousand, seven hundred eighty".