3952561 has 2 divisors, whose sum is σ = 3952562. Its totient is φ = 3952560.

The previous prime is 3952549. The next prime is 3952567. The reversal of 3952561 is 1652593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 1806336 = 1465^2 + 1344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3952561 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3952567) 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, 1976280 + 1976281.

It is an arithmetic number, because the mean of its divisors is an integer number (1976281).

Almost surely, 2^3952561 is an apocalyptic number.

It is an amenable number.

3952561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3952561 is an equidigital number, since it uses as much as digits as its factorization.

3952561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 31.

The square root of 3952561 is about 1988.1048765093. The cubic root of 3952561 is about 158.1100685803.

Subtracting from 3952561 its reverse (1652593), we obtain a cube (2299968 = 132³).

The spelling of 3952561 in words is "three million, nine hundred fifty-two thousand, five hundred sixty-one".