1198783 has 4 divisors (see below), whose sum is σ = 1250928. Its totient is φ = 1146640.

The previous prime is 1198751. The next prime is 1198793. The reversal of 1198783 is 3878911.

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

It is a cyclic number.

It is not a de Polignac number, because 1198783 - 2⁵ = 1198751 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26038 + ... + 26083.

It is an arithmetic number, because the mean of its divisors is an integer number (312732).

2^1198783 is an apocalyptic number.

1198783 is a deficient number, since it is larger than the sum of its proper divisors (52145).

1198783 is an equidigital number, since it uses as much as digits as its factorization.

1198783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52144.

The product of its digits is 12096, while the sum is 37.

The square root of 1198783 is about 1094.8894921406. The cubic root of 1198783 is about 106.2299210039.

The spelling of 1198783 in words is "one million, one hundred ninety-eight thousand, seven hundred eighty-three".