3920377 has 2 divisors, whose sum is σ = 3920378. Its totient is φ = 3920376.

The previous prime is 3920359. The next prime is 3920383. The reversal of 3920377 is 7730293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3297856 + 622521 = 1816^2 + 789^2 .

It is an emirp because it is prime and its reverse (7730293) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3920377 is a prime.

It is not a weakly prime, because it can be changed into another prime (3920177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960188 + 1960189.

It is an arithmetic number, because the mean of its divisors is an integer number (1960189).

Almost surely, 2^3920377 is an apocalyptic number.

It is an amenable number.

3920377 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920377 is an equidigital number, since it uses as much as digits as its factorization.

3920377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 3920377 is about 1979.9941919107. The cubic root of 3920377 is about 157.6797578078.

The spelling of 3920377 in words is "three million, nine hundred twenty thousand, three hundred seventy-seven".