1197806 has 4 divisors (see below), whose sum is σ = 1796712. Its totient is φ = 598902.

The previous prime is 1197799. The next prime is 1197821. The reversal of 1197806 is 6087911.

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

It is a plaindrome in base 16.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 299450 + ... + 299453.

It is an arithmetic number, because the mean of its divisors is an integer number (449178).

2^1197806 is an apocalyptic number.

1197806 is a deficient number, since it is larger than the sum of its proper divisors (598906).

1197806 is an equidigital number, since it uses as much as digits as its factorization.

1197806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598905.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1197806 is about 1094.4432374500. The cubic root of 1197806 is about 106.2010542725.

The spelling of 1197806 in words is "one million, one hundred ninety-seven thousand, eight hundred six".