3859665072 has 40 divisors (see below), whose sum is σ = 9984313344. Its totient is φ = 1284811584.

The previous prime is 3859665067. The next prime is 3859665077. The reversal of 3859665072 is 2705669583.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3859665067) and next prime (3859665077).

It is a super-3 number, since 3×3859665072³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3859665077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18448 + ... + 89775.

Almost surely, 2^3859665072 is an apocalyptic number.

It is an amenable number.

3859665072 is an abundant number, since it is smaller than the sum of its proper divisors (6124648272).

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

3859665072 is a wasteful number, since it uses less digits than its factorization.

3859665072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108977 (or 108971 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 3859665072 is about 62126.2027811132. The cubic root of 3859665072 is about 1568.6156366204.

The spelling of 3859665072 in words is "three billion, eight hundred fifty-nine million, six hundred sixty-five thousand, seventy-two".