3920471 has 2 divisors, whose sum is σ = 3920472. Its totient is φ = 3920470.

The previous prime is 3920467. The next prime is 3920509. The reversal of 3920471 is 1740293.

It is a weak prime.

It is an emirp because it is prime and its reverse (1740293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3920471 - 2² = 3920467 is a prime.

It is a super-3 number, since 3×3920471³ (a number of 21 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3920471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3920401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960235 + 1960236.

It is an arithmetic number, because the mean of its divisors is an integer number (1960236).

Almost surely, 2^3920471 is an apocalyptic number.

3920471 is a deficient number, since it is larger than the sum of its proper divisors (1).

3920471 is an equidigital number, since it uses as much as digits as its factorization.

3920471 is an evil number, because the sum of its binary digits is even.

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

The square root of 3920471 is about 1980.0179292118. The cubic root of 3920471 is about 157.6810180420.

The spelling of 3920471 in words is "three million, nine hundred twenty thousand, four hundred seventy-one".