3961288 has 8 divisors (see below), whose sum is σ = 7427430. Its totient is φ = 1980640.

The previous prime is 3961283. The next prime is 3961327. The reversal of 3961288 is 8821693.

3961288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 996004 = 1722^2 + 998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3961283) 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, 247573 + ... + 247588.

Almost surely, 2^3961288 is an apocalyptic number.

It is an amenable number.

3961288 is a deficient number, since it is larger than the sum of its proper divisors (3466142).

3961288 is a wasteful number, since it uses less digits than its factorization.

3961288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495167 (or 495163 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 3961288 is about 1990.2984700793. The cubic root of 3961288 is about 158.2263486570.

The spelling of 3961288 in words is "three million, nine hundred sixty-one thousand, two hundred eighty-eight".