2979729617 has 2 divisors, whose sum is σ = 2979729618. Its totient is φ = 2979729616.

The previous prime is 2979729611. The next prime is 2979729637. The reversal of 2979729617 is 7169279792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2937531601 + 42198016 = 54199^2 + 6496^2 .

It is a cyclic number.

It is not a de Polignac number, because 2979729617 - 2²⁸ = 2711294161 is a prime.

It is not a weakly prime, because it can be changed into another prime (2979729611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1489864808 + 1489864809.

It is an arithmetic number, because the mean of its divisors is an integer number (1489864809).

Almost surely, 2^2979729617 is an apocalyptic number.

It is an amenable number.

2979729617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2979729617 is an equidigital number, since it uses as much as digits as its factorization.

2979729617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 59.

The square root of 2979729617 is about 54586.8996829825. The cubic root of 2979729617 is about 1438.9938987176.

The spelling of 2979729617 in words is "two billion, nine hundred seventy-nine million, seven hundred twenty-nine thousand, six hundred seventeen".