1864025 has 6 divisors (see below), whose sum is σ = 2311422. Its totient is φ = 1491200.

The previous prime is 1864003. The next prime is 1864039. The reversal of 1864025 is 5204681.

It can be written as a sum of positive squares in 3 ways, for example, as 150544 + 1713481 = 388^2 + 1309^2 .

It is not a de Polignac number, because 1864025 - 2⁸ = 1863769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1863985 and 1864003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37256 + ... + 37305.

It is an arithmetic number, because the mean of its divisors is an integer number (385237).

2^1864025 is an apocalyptic number.

It is an amenable number.

1864025 is a deficient number, since it is larger than the sum of its proper divisors (447397).

1864025 is an equidigital number, since it uses as much as digits as its factorization.

1864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74571 (or 74566 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1864025 is about 1365.2930088446. The cubic root of 1864025 is about 123.0695400719.

The spelling of 1864025 in words is "one million, eight hundred sixty-four thousand, twenty-five".