199103693 has 4 divisors (see below), whose sum is σ = 199153920. Its totient is φ = 199053468.

The previous prime is 199103687. The next prime is 199103713. The reversal of 199103693 is 396301991.

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 199103693 - 2⁶ = 199103629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 199103693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199103683) 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, 18605 + ... + 27282.

It is an arithmetic number, because the mean of its divisors is an integer number (49788480).

Almost surely, 2^199103693 is an apocalyptic number.

It is an amenable number.

199103693 is a deficient number, since it is larger than the sum of its proper divisors (50227).

199103693 is an equidigital number, since it uses as much as digits as its factorization.

199103693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50226.

The product of its (nonzero) digits is 39366, while the sum is 41.

The square root of 199103693 is about 14110.4108019575. The cubic root of 199103693 is about 583.9286334963.

The spelling of 199103693 in words is "one hundred ninety-nine million, one hundred three thousand, six hundred ninety-three".