1199097993 has 4 divisors (see below), whose sum is σ = 1598797328. Its totient is φ = 799398660.

The previous prime is 1199097989. The next prime is 1199098049. The reversal of 1199097993 is 3997909911.

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 1199097993 - 2² = 1199097989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1199097293) 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, 199849663 + ... + 199849668.

It is an arithmetic number, because the mean of its divisors is an integer number (399699332).

Almost surely, 2^1199097993 is an apocalyptic number.

It is an amenable number.

1199097993 is a deficient number, since it is larger than the sum of its proper divisors (399699335).

1199097993 is an equidigital number, since it uses as much as digits as its factorization.

1199097993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399699334.

The product of its (nonzero) digits is 1240029, while the sum is 57.

The square root of 1199097993 is about 34627.9943542793. The cubic root of 1199097993 is about 1062.3922453676.

The spelling of 1199097993 in words is "one billion, one hundred ninety-nine million, ninety-seven thousand, nine hundred ninety-three".