1925806 has 4 divisors (see below), whose sum is σ = 2888712. Its totient is φ = 962902.

The previous prime is 1925801. The next prime is 1925827. The reversal of 1925806 is 6085291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6085291 = 79 ⋅77029.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 481450 + ... + 481453.

It is an arithmetic number, because the mean of its divisors is an integer number (722178).

2^1925806 is an apocalyptic number.

1925806 is a deficient number, since it is larger than the sum of its proper divisors (962906).

1925806 is an equidigital number, since it uses as much as digits as its factorization.

1925806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962905.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1925806 is about 1387.7341243913. The cubic root of 1925806 is about 124.4144560559.

The spelling of 1925806 in words is "one million, nine hundred twenty-five thousand, eight hundred six".