1625339 has 2 divisors, whose sum is σ = 1625340. Its totient is φ = 1625338.

The previous prime is 1625329. The next prime is 1625347. The reversal of 1625339 is 9335261.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1625339 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 6 + 2¹³ + 5⁵ + 3⁹ + 3¹³ + 9 .

It is not a weakly prime, because it can be changed into another prime (1625329) 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, 812669 + 812670.

It is an arithmetic number, because the mean of its divisors is an integer number (812670).

2^1625339 is an apocalyptic number.

1625339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625339 is an equidigital number, since it uses as much as digits as its factorization.

1625339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 29.

The square root of 1625339 is about 1274.8878382038. The cubic root of 1625339 is about 117.5749092274.

The spelling of 1625339 in words is "one million, six hundred twenty-five thousand, three hundred thirty-nine".