1223879017 has 8 divisors (see below), whose sum is σ = 1242727200. Its totient is φ = 1205048064.

The previous prime is 1223879003. The next prime is 1223879023. The reversal of 1223879017 is 7109783221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223879017 - 2⁷ = 1223878889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223879047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283209 + ... + 287497.

It is an arithmetic number, because the mean of its divisors is an integer number (155340900).

Almost surely, 2^1223879017 is an apocalyptic number.

It is an amenable number.

1223879017 is a deficient number, since it is larger than the sum of its proper divisors (18848183).

1223879017 is an equidigital number, since it uses as much as digits as its factorization.

1223879017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 1223879017 is about 34983.9822919004. The cubic root of 1223879017 is about 1069.6610033336.

The spelling of 1223879017 in words is "one billion, two hundred twenty-three million, eight hundred seventy-nine thousand, seventeen".