1220276793 has 4 divisors (see below), whose sum is σ = 1627035728. Its totient is φ = 813517860.

The previous prime is 1220276791. The next prime is 1220276797. The reversal of 1220276793 is 3976720221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1220276793 - 2¹ = 1220276791 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220276791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203379463 + ... + 203379468.

It is an arithmetic number, because the mean of its divisors is an integer number (406758932).

Almost surely, 2^1220276793 is an apocalyptic number.

It is an amenable number.

1220276793 is a deficient number, since it is larger than the sum of its proper divisors (406758935).

1220276793 is an equidigital number, since it uses as much as digits as its factorization.

1220276793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406758934.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 1220276793 is about 34932.4604487001. The cubic root of 1220276793 is about 1068.6105332049.

The spelling of 1220276793 in words is "one billion, two hundred twenty million, two hundred seventy-six thousand, seven hundred ninety-three".