3547961 has 2 divisors, whose sum is σ = 3547962. Its totient is φ = 3547960.

The previous prime is 3547949. The next prime is 3547963. The reversal of 3547961 is 1697453.

3547961 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., 2119936 + 1428025 = 1456^2 + 1195^2 .

It is an emirp because it is prime and its reverse (1697453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3547961 is a prime.

Together with 3547963, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3547963) 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, 1773980 + 1773981.

It is an arithmetic number, because the mean of its divisors is an integer number (1773981).

Almost surely, 2^3547961 is an apocalyptic number.

It is an amenable number.

3547961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3547961 is an equidigital number, since it uses as much as digits as its factorization.

3547961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 3547961 is about 1883.6031960049. The cubic root of 3547961 is about 152.5198182611.

The spelling of 3547961 in words is "three million, five hundred forty-seven thousand, nine hundred sixty-one".