3986280769 has 9 divisors (see below), whose sum is σ = 4208393793. Its totient is φ = 3775340052.

The previous prime is 3986280721. The next prime is 3986280787. The reversal of 3986280769 is 9670826893.

The square root of 3986280769 is 63137.

It is a perfect power (a square), and thus also a powerful number.

3986280769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3986280769 - 2¹¹ = 3986278721 is a prime.

It is a super-2 number, since 2×3986280769² = 31780868738598462722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3986284769) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1197942 + ... + 1201264.

Almost surely, 2^3986280769 is an apocalyptic number.

3986280769 is the 63137-th square number.

3986280769 is the 31569-th centered octagonal number.

It is an amenable number.

3986280769 is a deficient number, since it is larger than the sum of its proper divisors (222113024).

3986280769 is an frugal number, since it uses more digits than its factorization.

3986280769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The cubic root of 3986280769 is about 1585.5841463598.

The spelling of 3986280769 in words is "three billion, nine hundred eighty-six million, two hundred eighty thousand, seven hundred sixty-nine".