1099640793 has 4 divisors (see below), whose sum is σ = 1466187728. Its totient is φ = 733093860.

The previous prime is 1099640771. The next prime is 1099640807. The reversal of 1099640793 is 3970469901.

1099640793 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1099640793 - 2¹⁰ = 1099639769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1099640693) 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, 183273463 + ... + 183273468.

It is an arithmetic number, because the mean of its divisors is an integer number (366546932).

Almost surely, 2^1099640793 is an apocalyptic number.

It is an amenable number.

1099640793 is a deficient number, since it is larger than the sum of its proper divisors (366546935).

1099640793 is an equidigital number, since it uses as much as digits as its factorization.

1099640793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366546934.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 1099640793 is about 33160.8322121143. The cubic root of 1099640793 is about 1032.1677389070.

The spelling of 1099640793 in words is "one billion, ninety-nine million, six hundred forty thousand, seven hundred ninety-three".