3775729 has 2 divisors, whose sum is σ = 3775730. Its totient is φ = 3775728.

The previous prime is 3775697. The next prime is 3775757. The reversal of 3775729 is 9275773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 1151329 = 1620^2 + 1073^2 .

It is a cyclic number.

It is not a de Polignac number, because 3775729 - 2⁵ = 3775697 is a prime.

It is a super-2 number, since 2×3775729² = 28512258962882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3775691 and 3775700.

It is not a weakly prime, because it can be changed into another prime (3775789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1887864 + 1887865.

It is an arithmetic number, because the mean of its divisors is an integer number (1887865).

Almost surely, 2^3775729 is an apocalyptic number.

It is an amenable number.

3775729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3775729 is an equidigital number, since it uses as much as digits as its factorization.

3775729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92610, while the sum is 40.

The square root of 3775729 is about 1943.1235164034. The cubic root of 3775729 is about 155.7161312562.

The spelling of 3775729 in words is "three million, seven hundred seventy-five thousand, seven hundred twenty-nine".