3309791961 has 16 divisors (see below), whose sum is σ = 5049846144. Its totient is φ = 1888927104.

The previous prime is 3309791957. The next prime is 3309792037. The reversal of 3309791961 is 1691979033.

It is not a de Polignac number, because 3309791961 - 2² = 3309791957 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3309791961.

It is not an unprimeable number, because it can be changed into a prime (3309791941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82140 + ... + 115613.

It is an arithmetic number, because the mean of its divisors is an integer number (315615384).

Almost surely, 2^3309791961 is an apocalyptic number.

It is an amenable number.

3309791961 is a deficient number, since it is larger than the sum of its proper divisors (1740054183).

3309791961 is a wasteful number, since it uses less digits than its factorization.

3309791961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198560.

The product of its (nonzero) digits is 275562, while the sum is 48.

The square root of 3309791961 is about 57530.7914164233. The cubic root of 3309791961 is about 1490.2766570348.

The spelling of 3309791961 in words is "three billion, three hundred nine million, seven hundred ninety-one thousand, nine hundred sixty-one".