3975577 has 2 divisors, whose sum is σ = 3975578. Its totient is φ = 3975576.

The previous prime is 3975547. The next prime is 3975593. The reversal of 3975577 is 7755793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2509056 + 1466521 = 1584^2 + 1211^2 .

It is an emirp because it is prime and its reverse (7755793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3975577 - 2⁷ = 3975449 is a prime.

It is not a weakly prime, because it can be changed into another prime (3975547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987788 + 1987789.

It is an arithmetic number, because the mean of its divisors is an integer number (1987789).

Almost surely, 2^3975577 is an apocalyptic number.

It is an amenable number.

3975577 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975577 is an equidigital number, since it uses as much as digits as its factorization.

3975577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 231525, while the sum is 43.

The square root of 3975577 is about 1993.8849013923. The cubic root of 3975577 is about 158.4163696181.

The spelling of 3975577 in words is "three million, nine hundred seventy-five thousand, five hundred seventy-seven".