3980569 has 8 divisors (see below), whose sum is σ = 4140360. Its totient is φ = 3822336.

The previous prime is 3980551. The next prime is 3980579. The reversal of 3980569 is 9650893.

It can be written as a sum of positive squares in 4 ways, for example, as 32400 + 3948169 = 180^2 + 1987^2 .

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 3980569 - 2¹³ = 3972377 is a prime.

It is a super-2 number, since 2×3980569² = 31689859127522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3980549) 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, 8977 + ... + 9409.

It is an arithmetic number, because the mean of its divisors is an integer number (517545).

Almost surely, 2^3980569 is an apocalyptic number.

It is an amenable number.

3980569 is a deficient number, since it is larger than the sum of its proper divisors (159791).

3980569 is a wasteful number, since it uses less digits than its factorization.

3980569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3980569 is about 1995.1363361936. The cubic root of 3980569 is about 158.4826479427.

It can be divided in two parts, 39 and 80569, that added together give a palindrome (80608).

The spelling of 3980569 in words is "three million, nine hundred eighty thousand, five hundred sixty-nine".