2956960721 has 24 divisors (see below), whose sum is σ = 3498544224. Its totient is φ = 2477429760.

The previous prime is 2956960717. The next prime is 2956960723. The reversal of 2956960721 is 1270696592.

It is not a de Polignac number, because 2956960721 - 2² = 2956960717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2956960723) 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 23 ways as a sum of consecutive naturals, for example, 2261750 + ... + 2263056.

It is an arithmetic number, because the mean of its divisors is an integer number (145772676).

Almost surely, 2^2956960721 is an apocalyptic number.

It is an amenable number.

2956960721 is a deficient number, since it is larger than the sum of its proper divisors (541583503).

2956960721 is a wasteful number, since it uses less digits than its factorization.

2956960721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 2956960721 is about 54377.9433318326. The cubic root of 2956960721 is about 1435.3192798452.

The spelling of 2956960721 in words is "two billion, nine hundred fifty-six million, nine hundred sixty thousand, seven hundred twenty-one".