2906123729 has 2 divisors, whose sum is σ = 2906123730. Its totient is φ = 2906123728.

The previous prime is 2906123713. The next prime is 2906123743. The reversal of 2906123729 is 9273216092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028601600 + 877522129 = 45040^2 + 29623^2 .

It is a cyclic number.

It is not a de Polignac number, because 2906123729 - 2⁴ = 2906123713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2906123789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1453061864 + 1453061865.

It is an arithmetic number, because the mean of its divisors is an integer number (1453061865).

Almost surely, 2^2906123729 is an apocalyptic number.

It is an amenable number.

2906123729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2906123729 is an equidigital number, since it uses as much as digits as its factorization.

2906123729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 2906123729 is about 53908.4754839163. The cubic root of 2906123729 is about 1427.0462002722.

The spelling of 2906123729 in words is "two billion, nine hundred six million, one hundred twenty-three thousand, seven hundred twenty-nine".