3894725459 has 2 divisors, whose sum is σ = 3894725460. Its totient is φ = 3894725458.

The previous prime is 3894725437. The next prime is 3894725563. The reversal of 3894725459 is 9545274983.

It is a weak prime.

It is an emirp because it is prime and its reverse (9545274983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3894725459 is a prime.

It is not a weakly prime, because it can be changed into another prime (3894725059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1947362729 + 1947362730.

It is an arithmetic number, because the mean of its divisors is an integer number (1947362730).

Almost surely, 2^3894725459 is an apocalyptic number.

3894725459 is a deficient number, since it is larger than the sum of its proper divisors (1).

3894725459 is an equidigital number, since it uses as much as digits as its factorization.

3894725459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 56.

The square root of 3894725459 is about 62407.7355701999. The cubic root of 3894725459 is about 1573.3509854752.

The spelling of 3894725459 in words is "three billion, eight hundred ninety-four million, seven hundred twenty-five thousand, four hundred fifty-nine".