1220683 has 4 divisors (see below), whose sum is σ = 1222920. Its totient is φ = 1218448.

The previous prime is 1220669. The next prime is 1220689. The reversal of 1220683 is 3860221.

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 1220683 - 2⁹ = 1220171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220689) 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, 303 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (305730).

2^1220683 is an apocalyptic number.

1220683 is a deficient number, since it is larger than the sum of its proper divisors (2237).

1220683 is an equidigital number, since it uses as much as digits as its factorization.

1220683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1220683 is about 1104.8452380311. The cubic root of 1220683 is about 106.8729093443.

The spelling of 1220683 in words is "one million, two hundred twenty thousand, six hundred eighty-three".