3695729 has 2 divisors, whose sum is σ = 3695730. Its totient is φ = 3695728.

The previous prime is 3695717. The next prime is 3695737. The reversal of 3695729 is 9275963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 1385329 = 1520^2 + 1177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3695729 is a prime.

It is a super-3 number, since 3×3695729³ (a number of 21 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3635729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1847864 + 1847865.

It is an arithmetic number, because the mean of its divisors is an integer number (1847865).

Almost surely, 2^3695729 is an apocalyptic number.

It is an amenable number.

3695729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3695729 is an equidigital number, since it uses as much as digits as its factorization.

3695729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 41.

The square root of 3695729 is about 1922.4278920157. The cubic root of 3695729 is about 154.6085021044.

The spelling of 3695729 in words is "three million, six hundred ninety-five thousand, seven hundred twenty-nine".