3920417 has 2 divisors, whose sum is σ = 3920418. Its totient is φ = 3920416.

The previous prime is 3920401. The next prime is 3920429. The reversal of 3920417 is 7140293.

3920417 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., 2719201 + 1201216 = 1649^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 3920417 - 2⁴ = 3920401 is a prime.

It is not a weakly prime, because it can be changed into another prime (3920467) 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, 1960208 + 1960209.

It is an arithmetic number, because the mean of its divisors is an integer number (1960209).

Almost surely, 2^3920417 is an apocalyptic number.

It is an amenable number.

3920417 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920417 is an equidigital number, since it uses as much as digits as its factorization.

3920417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 3920417 is about 1980.0042929246. The cubic root of 3920417 is about 157.6802940801.

The spelling of 3920417 in words is "three million, nine hundred twenty thousand, four hundred seventeen".