1229791793 has 4 divisors (see below), whose sum is σ = 1269462528. Its totient is φ = 1190121060.

The previous prime is 1229791753. The next prime is 1229791813. The reversal of 1229791793 is 3971979221.

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 a cyclic number.

It is not a de Polignac number, because 1229791793 - 2¹² = 1229787697 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 (1229791733) 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, 19835321 + ... + 19835382.

It is an arithmetic number, because the mean of its divisors is an integer number (317365632).

Almost surely, 2^1229791793 is an apocalyptic number.

It is an amenable number.

1229791793 is a deficient number, since it is larger than the sum of its proper divisors (39670735).

1229791793 is an equidigital number, since it uses as much as digits as its factorization.

1229791793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39670734.

The product of its digits is 428652, while the sum is 50.

The square root of 1229791793 is about 35068.3873738158. The cubic root of 1229791793 is about 1071.3808105686.

The spelling of 1229791793 in words is "one billion, two hundred twenty-nine million, seven hundred ninety-one thousand, seven hundred ninety-three".