3929409481 has 2 divisors, whose sum is σ = 3929409482. Its totient is φ = 3929409480.

The previous prime is 3929409413. The next prime is 3929409511. The reversal of 3929409481 is 1849049293.

3929409481 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., 3929409225 + 256 = 62685^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 3929409481 - 2¹⁵ = 3929376713 is a prime.

It is a super-2 number, since 2×3929409481² = 30880517738745378722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3929409881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964704740 + 1964704741.

It is an arithmetic number, because the mean of its divisors is an integer number (1964704741).

Almost surely, 2^3929409481 is an apocalyptic number.

It is an amenable number.

3929409481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3929409481 is an equidigital number, since it uses as much as digits as its factorization.

3929409481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 3929409481 is about 62685.0020419558. The cubic root of 3929409481 is about 1578.0076207235.

The spelling of 3929409481 in words is "three billion, nine hundred twenty-nine million, four hundred nine thousand, four hundred eighty-one".