1858925 has 6 divisors (see below), whose sum is σ = 2305098. Its totient is φ = 1487120.

The previous prime is 1858921. The next prime is 1858931. The reversal of 1858925 is 5298581.

It can be written as a sum of positive squares in 3 ways, for example, as 1156 + 1857769 = 34^2 + 1363^2 .

It is not a de Polignac number, because 1858925 - 2² = 1858921 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1858921) 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 in 5 ways as a sum of consecutive naturals, for example, 37154 + ... + 37203.

It is an arithmetic number, because the mean of its divisors is an integer number (384183).

2^1858925 is an apocalyptic number.

It is an amenable number.

1858925 is a deficient number, since it is larger than the sum of its proper divisors (446173).

1858925 is an equidigital number, since it uses as much as digits as its factorization.

1858925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74367 (or 74362 counting only the distinct ones).

The product of its digits is 28800, while the sum is 38.

The square root of 1858925 is about 1363.4239986153. The cubic root of 1858925 is about 122.9571975246.

The spelling of 1858925 in words is "one million, eight hundred fifty-eight thousand, nine hundred twenty-five".