1925839 has 2 divisors, whose sum is σ = 1925840. Its totient is φ = 1925838.

The previous prime is 1925837. The next prime is 1925851. The reversal of 1925839 is 9385291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1925839 - 2¹ = 1925837 is a prime.

Together with 1925837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1925798 and 1925807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1925837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962919 + 962920.

It is an arithmetic number, because the mean of its divisors is an integer number (962920).

2^1925839 is an apocalyptic number.

1925839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925839 is an equidigital number, since it uses as much as digits as its factorization.

1925839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The square root of 1925839 is about 1387.7460142259. The cubic root of 1925839 is about 124.4151666940.

The spelling of 1925839 in words is "one million, nine hundred twenty-five thousand, eight hundred thirty-nine".