3895561 has 2 divisors, whose sum is σ = 3895562. Its totient is φ = 3895560.

The previous prime is 3895543. The next prime is 3895571. The reversal of 3895561 is 1655983.

3895561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 1089936 = 1675^2 + 1044^2 .

It is a cyclic number.

It is not a de Polignac number, because 3895561 - 2⁷ = 3895433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3895561.

It is not a weakly prime, because it can be changed into another prime (3895511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1947780 + 1947781.

It is an arithmetic number, because the mean of its divisors is an integer number (1947781).

Almost surely, 2^3895561 is an apocalyptic number.

It is an amenable number.

3895561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3895561 is an equidigital number, since it uses as much as digits as its factorization.

3895561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 3895561 is about 1973.7175583148. The cubic root of 3895561 is about 157.3463488506.

It can be divided in two parts, 3895 and 561, that multiplied together give a triangular number (2185095 = T₂₀₉₀).

The spelling of 3895561 in words is "three million, eight hundred ninety-five thousand, five hundred sixty-one".