1802825 has 12 divisors (see below), whose sum is σ = 2297100. Its totient is φ = 1402560.

The previous prime is 1802821. The next prime is 1802837. The reversal of 1802825 is 5282081.

It can be written as a sum of positive squares in 6 ways, for example, as 110224 + 1692601 = 332^2 + 1301^2 .

It is not a de Polignac number, because 1802825 - 2² = 1802821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1802794 and 1802803.

It is not an unprimeable number, because it can be changed into a prime (1802821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50 + ... + 1899.

It is an arithmetic number, because the mean of its divisors is an integer number (191425).

2^1802825 is an apocalyptic number.

It is an amenable number.

1802825 is a deficient number, since it is larger than the sum of its proper divisors (494275).

1802825 is a wasteful number, since it uses less digits than its factorization.

1802825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996 (or 1991 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1802825 is about 1342.6931890793. The cubic root of 1802825 is about 121.7076445027.

The spelling of 1802825 in words is "one million, eight hundred two thousand, eight hundred twenty-five".