3961537 has 2 divisors, whose sum is σ = 3961538. Its totient is φ = 3961536.

The previous prime is 3961513. The next prime is 3961541. The reversal of 3961537 is 7351693.

3961537 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., 3936256 + 25281 = 1984^2 + 159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3961537 is a prime.

It is not a weakly prime, because it can be changed into another prime (3961597) 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, 1980768 + 1980769.

It is an arithmetic number, because the mean of its divisors is an integer number (1980769).

Almost surely, 2^3961537 is an apocalyptic number.

It is an amenable number.

3961537 is a deficient number, since it is larger than the sum of its proper divisors (1).

3961537 is an equidigital number, since it uses as much as digits as its factorization.

3961537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 34.

The square root of 3961537 is about 1990.3610225283. The cubic root of 3961537 is about 158.2296638696.

The spelling of 3961537 in words is "three million, nine hundred sixty-one thousand, five hundred thirty-seven".