1868806 has 4 divisors (see below), whose sum is σ = 2803212. Its totient is φ = 934402.

The previous prime is 1868777. The next prime is 1868807. The reversal of 1868806 is 6088681.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467200 + ... + 467203.

It is an arithmetic number, because the mean of its divisors is an integer number (700803).

2^1868806 is an apocalyptic number.

1868806 is a deficient number, since it is larger than the sum of its proper divisors (934406).

1868806 is an equidigital number, since it uses as much as digits as its factorization.

1868806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934405.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1868806 is about 1367.0427937706. The cubic root of 1868806 is about 123.1746697657.

The spelling of 1868806 in words is "one million, eight hundred sixty-eight thousand, eight hundred six".