3965215486 has 4 divisors (see below), whose sum is σ = 5947823232. Its totient is φ = 1982607742.

The previous prime is 3965215481. The next prime is 3965215517. The reversal of 3965215486 is 6845125693.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965215481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991303870 + ... + 991303873.

It is an arithmetic number, because the mean of its divisors is an integer number (1486955808).

Almost surely, 2^3965215486 is an apocalyptic number.

3965215486 is a deficient number, since it is larger than the sum of its proper divisors (1982607746).

3965215486 is a wasteful number, since it uses less digits than its factorization.

3965215486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982607745.

The product of its digits is 1555200, while the sum is 49.

The square root of 3965215486 is about 62969.9570112605. The cubic root of 3965215486 is about 1582.7862344795.

The spelling of 3965215486 in words is "three billion, nine hundred sixty-five million, two hundred fifteen thousand, four hundred eighty-six".