1825829 has 2 divisors, whose sum is σ = 1825830. Its totient is φ = 1825828.

The previous prime is 1825819. The next prime is 1825861. The reversal of 1825829 is 9285281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1435204 + 390625 = 1198^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825829 - 2¹² = 1821733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1825819) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912914 + 912915.

It is an arithmetic number, because the mean of its divisors is an integer number (912915).

2^1825829 is an apocalyptic number.

It is an amenable number.

1825829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1825829 is an equidigital number, since it uses as much as digits as its factorization.

1825829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 35.

The square root of 1825829 is about 1351.2324004404. The cubic root of 1825829 is about 122.2231203179.

The spelling of 1825829 in words is "one million, eight hundred twenty-five thousand, eight hundred twenty-nine".