3975779 has 2 divisors, whose sum is σ = 3975780. Its totient is φ = 3975778.

The previous prime is 3975749. The next prime is 3975791. The reversal of 3975779 is 9775793.

It is a strong prime.

It is an emirp because it is prime and its reverse (9775793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3975779 - 2¹⁶ = 3910243 is a prime.

It is not a weakly prime, because it can be changed into another prime (3975709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1987889 + 1987890.

It is an arithmetic number, because the mean of its divisors is an integer number (1987890).

Almost surely, 2^3975779 is an apocalyptic number.

3975779 is a deficient number, since it is larger than the sum of its proper divisors (1).

3975779 is an equidigital number, since it uses as much as digits as its factorization.

3975779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 416745, while the sum is 47.

The square root of 3975779 is about 1993.9355556286. The cubic root of 3975779 is about 158.4190526303.

The spelling of 3975779 in words is "three million, nine hundred seventy-five thousand, seven hundred seventy-nine".