4720039729 has 2 divisors, whose sum is σ = 4720039730. Its totient is φ = 4720039728.

The previous prime is 4720039703. The next prime is 4720039741. The reversal of 4720039729 is 9279300274.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3906250000 + 813789729 = 62500^2 + 28527^2 .

It is a cyclic number.

It is not a de Polignac number, because 4720039729 - 2²⁷ = 4585822001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4720039769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360019864 + 2360019865.

It is an arithmetic number, because the mean of its divisors is an integer number (2360019865).

Almost surely, 2^4720039729 is an apocalyptic number.

It is an amenable number.

4720039729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4720039729 is an equidigital number, since it uses as much as digits as its factorization.

4720039729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 4720039729 is about 68702.5452876384. The cubic root of 4720039729 is about 1677.4460117234.

The spelling of 4720039729 in words is "four billion, seven hundred twenty million, thirty-nine thousand, seven hundred twenty-nine".