1873906 has 4 divisors (see below), whose sum is σ = 2810862. Its totient is φ = 936952.

The previous prime is 1873889. The next prime is 1873967. The reversal of 1873906 is 6093781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1798281 + 75625 = 1341^2 + 275^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 468475 + ... + 468478.

2^1873906 is an apocalyptic number.

1873906 is a deficient number, since it is larger than the sum of its proper divisors (936956).

1873906 is an equidigital number, since it uses as much as digits as its factorization.

1873906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936955.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1873906 is about 1368.9068631576. The cubic root of 1873906 is about 123.2866165084.

The spelling of 1873906 in words is "one million, eight hundred seventy-three thousand, nine hundred six".