3106729 has 2 divisors, whose sum is σ = 3106730. Its totient is φ = 3106728.

The previous prime is 3106703. The next prime is 3106751. The reversal of 3106729 is 9276013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 1010025 = 1448^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 3106729 - 2⁷ = 3106601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3106697 and 3106706.

It is not a weakly prime, because it can be changed into another prime (3106769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553364 + 1553365.

It is an arithmetic number, because the mean of its divisors is an integer number (1553365).

Almost surely, 2^3106729 is an apocalyptic number.

It is an amenable number.

3106729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3106729 is an equidigital number, since it uses as much as digits as its factorization.

3106729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 3106729 is about 1762.5915579056. The cubic root of 3106729 is about 145.9153979110.

The spelling of 3106729 in words is "three million, one hundred six thousand, seven hundred twenty-nine".