3996649909 has 8 divisors (see below), whose sum is σ = 4574515328. Its totient is φ = 3420513360.

The previous prime is 3996649907. The next prime is 3996649913. The reversal of 3996649909 is 9099466993.

3996649909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3996649909 - 2¹ = 3996649907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3996649907) 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, 427257 + ... + 436510.

It is an arithmetic number, because the mean of its divisors is an integer number (571814416).

Almost surely, 2^3996649909 is an apocalyptic number.

It is an amenable number.

3996649909 is a deficient number, since it is larger than the sum of its proper divisors (577865419).

3996649909 is an equidigital number, since it uses as much as digits as its factorization.

3996649909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864435.

The product of its (nonzero) digits is 25509168, while the sum is 64.

The square root of 3996649909 is about 63219.0628608175. The cubic root of 3996649909 is about 1586.9577666932.

The spelling of 3996649909 in words is "three billion, nine hundred ninety-six million, six hundred forty-nine thousand, nine hundred nine".