3963521659 has 8 divisors (see below), whose sum is σ = 4119690960. Its totient is φ = 3809933856.

The previous prime is 3963521629. The next prime is 3963521663. The reversal of 3963521659 is 9561253693.

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 3963521659 - 2⁷ = 3963521531 is a prime.

It is a super-2 number, since 2×3963521659² = 31419007882724224562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3963521629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642244 + ... + 648385.

It is an arithmetic number, because the mean of its divisors is an integer number (514961370).

Almost surely, 2^3963521659 is an apocalyptic number.

3963521659 is a deficient number, since it is larger than the sum of its proper divisors (156169301).

3963521659 is a wasteful number, since it uses less digits than its factorization.

3963521659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290749.

The product of its digits is 1312200, while the sum is 49.

The square root of 3963521659 is about 62956.5060895218. The cubic root of 3963521659 is about 1582.5608286638.

The spelling of 3963521659 in words is "three billion, nine hundred sixty-three million, five hundred twenty-one thousand, six hundred fifty-nine".