3912481 has 2 divisors, whose sum is σ = 3912482. Its totient is φ = 3912480.

The previous prime is 3912463. The next prime is 3912487. The reversal of 3912481 is 1842193.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3272481 + 640000 = 1809^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 3912481 - 2¹³ = 3904289 is a prime.

It is a super-2 number, since 2×3912481² = 30615015150722, which contains 22 as substring.

3912481 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3912487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1956240 + 1956241.

It is an arithmetic number, because the mean of its divisors is an integer number (1956241).

Almost surely, 2^3912481 is an apocalyptic number.

It is an amenable number.

3912481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3912481 is an equidigital number, since it uses as much as digits as its factorization.

3912481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 3912481 is about 1977.9992416581. Note that the first 3 decimals coincide. The cubic root of 3912481 is about 157.5738261437.

The spelling of 3912481 in words is "three million, nine hundred twelve thousand, four hundred eighty-one".