2961409309 has 8 divisors (see below), whose sum is σ = 2972773440. Its totient is φ = 2950063200.

The previous prime is 2961409301. The next prime is 2961409349. The reversal of 2961409309 is 9039041692.

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 2961409309 - 2³ = 2961409301 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 (2961409301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387889 + ... + 395449.

It is an arithmetic number, because the mean of its divisors is an integer number (371596680).

Almost surely, 2^2961409309 is an apocalyptic number.

It is an amenable number.

2961409309 is a deficient number, since it is larger than the sum of its proper divisors (11364131).

2961409309 is a wasteful number, since it uses less digits than its factorization.

2961409309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9011.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 2961409309 is about 54418.8323009599. The cubic root of 2961409309 is about 1436.0387060133.

The spelling of 2961409309 in words is "two billion, nine hundred sixty-one million, four hundred nine thousand, three hundred nine".